Do You Need A Special Overhead Crane For Special Working Places?

In many industries, people are unable to complete their jobs without the right tools at their disposal (su Disposición). If a person doesn’t have the machinery they need to get a job done, then that job might not wind up getting done at all.

This can be a big problem in industries (gran problema en industrias) where the required tools are very costly. If a piece of machinery costs hundreds or thousands of dollars, companies want to make sure they will be getting plenty of use out of them. Because of this, many companies are reluctant to invest in a special overhead crane for special working places (para los trabajos especiales).

If you’re considering buying a special crane, but aren’t sure that you need it, make sure you ask yourself these questions.

special overhead crane 1

1. Can This Job Be Safely Completed Without A Special Crane?

Sometimes, companies cut corners in order to save money. This can often have disastrous results. If employees are injured because the proper safety protocol wasn’t followed, companies could be liable for millions of dollars worth of damages. En special conditions like explosive atmosphere (atex), you will need a explosion proof overhead crane. For high and extreme temperature, it is important to choose a metallurgy overhead crane (Puente grua metalurgía).

If a job can’t be done safely without a special kind of crane, that crane will need to be obtained. There is no excuse for ignoring safety procedures. In the long run, having the equipment you need will pay off. Of course, you can also get an excellent special crane with lower price by a click at http://ellsenpuentegrua.es/puente-grua-especial/

2. Will A Special Crane Allow Me To Work More Quickly?

While a special crane may be expensive, it may also wind up paying for itself in time. In some cases, having a special crane to work with will allow you to complete a job far more quickly than you would have been able to finish it otherwise. For materials of iron or steel (hierro o acero), an electromagnetic crane may be the best choice. If you need to deal with waste handling, a grab (Agarrador Metálica) overhead crane can help a lot.

If you finish a job fast, you won’t have to pay employees for additional hours of labor. It is also likely that you’ll wind up using fewer materials than you would have used otherwise.

Determine how much a special crane will cost you, and then figure out how much money will save you. Even an expensive piece of equipment may wind up paying for itself in full very quickly. If you are not sure about that, Ellsen Co Ltd will give you a good advice.

special overhead crane 2

3. Can You Use It Again?

How specialized is the overhead crane you are considering? Will you be able to use it for other jobs in the future, or will it only be used for this particular job? Will you choose a crane of light capacity of 3 ton (capacidad ligera de 3 toneladas), or a heavy one of 100 ton (una pesada de 100 ton)?

If you can use the crane repeatedly (ocasión), it is likely that it’s a worthwhile investment, even if you won’t use it all the time. Having a tool that helps you to complete difficult jobs can be a big asset.

If you will only use it once, however, you may want to see if it is possible to rent to this industrial crane (Grua industrial) you need. An overhead crane is a major purchase, and you don’t want to be stuck with something you won’t ever have a chance to use.

If you’re thinking about buying a special overhead crane for a specific kind of job, ask yourself the questions listed above. From there, you can decide whether or not a purchase makes sense for you.

What Are The Different Types Of Small Overhead Cranes?

Cranes are mechanical instruments which can be necessary for heavy work. It really is required when there are actually large and heavy objects must be moved in one location to another. It can be commonly used in construction sites, but may also be used in junk yards, scrap yards and factories. These types of mechanical instruments are manufactured from several parts wire, sheaves and hoist.

You will find different types of overhead cranes, and every one has specific forms of use.

HD type european standard overhead crane
HD type european standard overhead crane

Bridge Cranes

Most of these small  overhead cranes are set up on metal beams, which beams run down the ceiling of warehouses and factories. These cranes need to have two beams, as well as a trolley that travels with it. The crane carries not only the load but also the hoist. It is additionally needed to be able to lift and reduce objects.

There are two several types of  small bridge cranes from Ellsen. Bottom running bridge cranes operate along the bottom of the beam. They also lessen the available height in a room. It could also be placed in a factory which is already built. However, most of these cranes are incapable of carry loads that are heavy, and are generally only able to carry 15 tons or less.

The following form of bridge crane can be a top running bridge crane. They operate near the top of beams, and so they require much space so that you can move easily. Installing these kinds of beams must be preplanned. They are strong than bottom running bridge cranes, and can easily lift objects which can be heavy.

Just click here to know more information about small overhead crane with high quality and competitive price. http://ellsenoverheadcraneservice.com/small-overhead-crane-sale/

Monorail Cranes

This sort of overhead crane is distinct than bridge cranes. They can work on one rail that may be placed on the ceiling, and they are able to be operated from a forklift. Monorail cranes can also be operated at a distance and/or from a small car that moves behind the forklift.

garage overhead crane
garage overhead crane

 

Gantry Cranes

Overhead gantry cranes are advanced modifications of bridge cranes. The tracks these cranes operate on might be mounted to the floor, and consequently, they may carry over 300 tons. They can also be used to get into deep water. A gantry crane is usually used to move cargo to and from docks and ports.

Jib Cranes

This crane is extremely compact which is efficient to use within small spaces. One end of your job crane is fixed with a stationary object say for example a wall. Then, hinges are given therefore the crane will be able to swivel in the room.

Wall Cranes

Wall cranes are similar to other cranes as they are attached to beams which can be horizontal. They stay in a 90 degree angle when on the ground and therefore are stationary. However, wall cranes can go up and down also. Loads can be lifted circular.

These are one of the various kinds of small overhead shop cranes project. Your business can utilize one or more to meet your needs.

Conversion Of Waste Tyres To Oil – Is It Feasible

Though the price of crude oil might be trading at the lowest levels in the past few years, there is no doubt that this is will not be a permanent thing. It is bound to increase with time and may soon outstrip the levels it reached around 2 years ago. Hence there is a need to look for alternatives and this could come in the form of tire to oil machine. Though it is still in its nascent stage, there is hardly any doubt that these plants are creating lot of excitement and could be the future answer for alternate sources of fuel and energy. Hence it would be interesting to have a closer at such waste tyres to oil pyrolysis plant.

Tyre to Oil Machine to Canada
Tyre to Oil Machine to Canada

They Use 100% Waste Tyres

There is no doubt that after a few years, the tyres will become useless and will have to be discarded. However, with the help of the right waste tyre pyrolysis plant it is possible to recycle the waste tyre and ensure that it goes through a process called pyrolysis. The process unlike common perception is completely eco-friendly and does not make use need any chemical ingredients whatsoever. Further tyre waste could lead to a number skin, breathing and bronchial diseases when they are recycled or even let to decompose naturally. All these can be avoided when one makes use of the right waste tyre pyrolysis oil plant. It will well and truly help in converting tires to oil which can be substituted for petrol and diesel. Therefore it comes with a number of economic and social benefits. There are many who fee that opting for the right waste tire pyrolysis plant without any doubt is one of the best ways of making available alternate sources of energy.

Tyre to Oil Machine to Uganda
Tyre to Oil Machine to Uganda

Benefits Which Are Obvious

When one chooses suitable waste tyre pyrolysis plant they can be sure that they will be able to get 100% recycling of waste turns and there will not be any residue of churn left after the process. Many tests have been conducted to prove that this tire recycling process is totally safe to the environment and does not cause any damage to soil, water, and other natural substances. It is also considered to be a cost-effective way of having a clean and pollution-free alternative source of energy. Raw material availability is not a problem and it also is very cheap and one can expect a continuous supply of raw materials because tires will get damaged and will not be fit for use again. With the help of one tire recycling machinery, it is possible to ensure prevent 10 tons of CO2 emission. This certainly goes a long way in ensuring a cleaner and greener environment apart from ensuring that an alternate source of fuel is made available.

Hence when all the above points are taken into account there is no doubt that going in for waste tyre oil pyrolysis plant without any doubt is a smart way forward. Though a small beginning has been made it certainly holds out a lot of future and hope. More waste management projects can be found: https://bestonasia.com/.

How Does An Automatic Hydraulic Rolling Coil Machine Work?

If you use wrought iron in your business, it is something that you may have to purchase quite a bit of equipment for in order to have a fully functioning company. One of those machines that you will need to use is called automatic hydraulic rolling coil machines. It works on a very simple cases. The coil is able to superheat the metal that you are going to bend, in this case the iron bar. You will then, once it is heated up, you will put this in the roller which will then put the curl at the end of the bar which is very common with products in this industry. There are ways to find these for a minimal amount of money. Here is exactly what you need to do.

rolling coil machine

How Do These Machines Work?

These machines are powered by electricity, something that you can simply plug in. It is able to use a generator in the coil machine that will superheat the coil. The bar is placed inside of the coil, allowing you to get extra hot. Once it is at that level, it will then become extremely bendable, allowing you to shape it however you want. Sometimes they may use hydraulics work, but regardless of how they are designed, they are built to make efficiency your priority. You will be able to heat and bend multiple bars every hour, allowing you to have workers that will be able to construct the different products that you sell.

rolling coil machines

Should You Get A New One Or Used One?

In most cases, it is recommended that you get a new machine. This is because there will be no problems with it. However, if you can get one for a significant discount, and if it is in good working condition, you will be able to save hundreds if not thousands of dollars by this type of investment. After you have spent your money on this machine, you should be able to increase your production. This will allow your company to make more money by producing more product, and then you can upgrade to something further. The more machines that you have, the more production will be possible, and this is very important in the wrought iron industry.

After you have done a little bit of research in your town, city or even on the web, you will find multiple automatic hydraulic rolling coil machines that are available. You simply have to decide whether or not you want to purchase something new, which will typically come from overseas, or you can get something used from a local company that is in the same industry that will be willing to sell it to you for a discounted price. Just remember to consider all of your options, and also how much money you have to work with. A sizable investment may prevent you from having the cash flow that you need to pay your workers, or perhaps invest into something else, and therefore a used model may be exactly what you need.

Ellsen is a reputable manufacturer in producing various wrought iron machines like automatic rolling coil machine http://ellsenwroughtironmachine.com/automatic-hydraulic-rolling-coil-machine/. Since we built up our company, we have always insist on that the most important thing is to put customers first so we have got a lot of praises from our customers. You can visit here http://ellsenwroughtironmachine.com/ to know more information about Ellsen.

Recycling Waste Tyre and Rubber Through Beston Pyrolysis Process

Millions of tons of rubber and tyre waste are produced in the world every year. Most of these wastes are either burnt or used for filling the land. Burning emits harmful gases and creates threats to the environment. Pyrolysis technology emerged as a solution for decomposing plastic and tyre waste. Pyrolysis involves carbonaceous material’s thermal decomposition in an oxygen free environment. In this pyrolysis process, the pressure of the system is not restricted by the pressure of water vapour.

Application of pyrolysis helps to recover energy in rubber waste and tyre waste through chemical manipulation. Plastic recycling through pyrolysis process consists of several steps. All plastic waste needs to be sorted before putting it through the process. Mechanical recycling includes shredding of polymers and cryogenic grinding of plastics. Through rubber pyrolysis plant, the long chain molecules of polymer are cracked into smaller chains with the help of pressure and heat. It is similar to nature’s process where the earth breaks down carbon and produces oil. This natural process takes millions of years. The process of plastic pyrolysis produces mainly three products: Bio-oil, bio-char and syngas.

Bio-oil or tyre pyrolysis oil can be considered as a substitute for industrial diesel by oil distillation plant. Pyrolysis oil is also used in boilers, furnace, electric generators, diesel pumps, hot air and water generators, heaters, thermic fluids, and other equipment. Syngas is reused in waste tyre and rubber pyrolysis plant and the bio-char or carbon black is put to use in plastic and rubber industries and also in inks, paints etc. High calorific value biomass can only be pyrolised in order to generate bio-oil.

Waste Tyre To Oil Machine

Tyre recycling through the waste tyre pyrolysis process involves heating of whole or shredded tyres without oxygen in a closed vessel reactor. Rubber polymers will break down and form smaller molecules. Vapourised smaller molecules are burnt further to produce bio-oil or pyrolysis oil. Solid, liquid and gaseous properties are derived from pyrolysis tyre process by the process conditions and feedstock used. A major issue related to waste rubber pyrolysis plant is the generation of the solid stream, which constitutes about 40% of the total output: https://www.bestongroup.com/pyrolysis-plant-for-sale/. Steel from solid stream is removed with the help of magnets, but the remaining bio-char has no value other than being a carbon fuel of lower grade.

waste tyre rubber pyrolysis plant

Importance of waste tyre and rubber pyrolysis plant

The major advantage of the waste tyre pyrolysis plant is that it decomposes waste and produces valuable products. The pyrolysis process uses waste plastics and scarp tyre as biomass or feedstock. The pyrolysis process and output from this process are environment-friendly. Pyrolysis can produce synthetic diesel fuel and thereby the dependency on fossil fuels can be reduced. Bio-oil can be used in pharmaceuticals. Further research can yield technology that can convert bio-oil and in the future it may become a substitute fuel for car engines. Biochar or black carbon is considered as a useful fertiliser. Therefore, all products from pyrolysis process are different forms of renewable energy: https://www.bestongroup.com/tyre-to-fuel-recycling-plant/.

Apart from this, the waste tyre and rubber pyrolysis plant and technology are economically viable as there will not be any scarcity for the availability of waste plastics and scrap tyres. This technology is modular and more flexible than incineration. The waste tyre and Beston rubber pyrolysis plant will not produce any harmful gases or chemicals, and the products offer a better solution for the recovery of natural resources. Improving the operations of pyrolysis can reduce a considerable amount of plastic and tyre wastes. If you have any interest, this link: https://www.bestongroup.com/ may give you more detailed information.

About Electric Winches

Electric winches are typically used for the purpose of pulling equipment or a truck, crane, boat or vehicle out of a problematic situation or area. One of these examples could be a vehicle that has veered off the road and gone down into a ravine. Trucks that have these electric winches attached can be used to hook onto the vehicle and bring it back to the surface of the road. Electric winches are also useful for tugging a boat back to safety.

Today, the electricity hoisting winch is available in a large assortment of sizes and shapes and will generally come with a two-speed engine. These winches feature a cable which is attached onto the spool that is attached onto the motor. There is also a gear lever that is used to turn the spool to release the attached cable.

electric winch

When the cable on an electric winch has been extended to the object, machinery or vehicle that requires towing, the gear lever will be pushed in an opposite direction to the object. This action will trigger the spool to start winding up. In the process of this winding action, the cable will also return to its original position. The object will then be transported to the desired destination. When increasing the speed on the engine, the drive mechanism on the winch is able to turn faster, this decreases the time of pulling the object back to safety.

Typically, most electric winches are designed to handle loads of around 500 pounds up to two tons. The motors and the cables in an electric winch are designed in a specific method in order to effectively handle various weight loads. The electric winches that are made to operate load capacities that are large generally attract a higher price tag. The winches designed to handle loads of around 12,000 pounds will typically cost over $700. While a standard 9,000 pound winch costs in the region of 300 ?600 dollars.

electric winches

The length on a standard electric winch cable is around 100 feet. These winch types also come with a handheld remote control as well as an automatic-brake. The engine performance on an electric winch produces between 1 third horsepower to more than 50 horsepower. These devices are easy to install onto a solid surface or the back end of a boat, vehicle or truck. However, when it comes to purchasing an electric winch, it becomes an important exercise to conduct a bit of research on the available products. This can include reading up on forums and customer reviews as there are a number of models that make promises that they often are unable to deliver.

To date the biggest electric winch worldwide has been rigged to a deep-water construction vessel known as the Balder. This winch is able to handle an outstanding load that equates to 275 metric tons. This construction vehicle is capable of holding 350 workers and has been in use for the process of installing oil platforms, underwater oil-lines as well as rescue operations to save a sinking oil rig. interested in it? Click http://ellsenwinches.com/electric-winch/ to learn more. or visit the winch site: ellsenwinch.com.

The Basic Principles Of CNC Bar Bending Machines

CNC bar bending machines have numerous benefits. They can be more precise because they are computer controlled. They utilize a particular software which enables you to create precise bends and constitute the rebar exactly how you need it.

You can utilize CNC bar bending machine to bend steel, control speed, coordination, positioning and much more. You can even use CAD drawings to create the shapes from the rebar and have the very same bend time and time again. You can even create harder shapes. If you want precision with regards to your rebar, then this CNC machine is a good buy.

Rebar is used to reinforce concrete and it is an important portion of the construction process. It is actually used in combination with masonry also. The rebar provides strength and prevents the concrete from failing. It comes down in different grades, strengths and diameters, so when you find yourself getting a CNC rebar bending machine, you would like to ensure that it could handle how big rebar you are planning on using. And if you want to how to bend rebar by CNC machines, please watch videos on Youtube.

GW50E Bar bending machine for sale
GW50E Bar bending machine for sale

Upon having the actual size of your rebar down, the engineer must decide the contour from the rebar that will be needed. Stirrups are a common shape and you will take advantage of therebar bending machine for road construction to generate them in only 30 seconds. There are actually multiple types of rebar machines. Some machines are stationary and you can use them in the shop to make multiple pieces, while some are portable and can be used right in the construction site.

Both types of machines have their own uses and getting a portable machine on site is a good idea as there is always an issue where you end up short a couple of pieces or possibly a few pieces should be bent over again. Using a rebar bender machine on site saves you some time and lets you shape the content fast.

GW50E CNC automatic bar bending machine
GW50E CNC automatic bar bending machine

When you find yourself buying a rebar bending machine on the Internet www.ellsenrebarbendingmachine.com/, you need to take many factors into mind. You need to make sure that the machine are equipped for the total amount and dimensions of rebar you have to bend and you have to consider your finances. It is best to buy the best machine you could afford and make sure you keep the quantity at heart.

If you wish to process huge numbers of rebar, you have to get yourself a machine that will process it and stationary machines are best for this. Some machines can cut multiple bars and if you are using a lot of rebar, you might like to get this particular machine. The CNC bar bending machine provdes the most control and let you bend the rebar exactly how you really need it to get bent.

Rebar is an important component with regards to utilizing concrete, it gives your projects strength and ensures they are safer. You possibly can make your production work better by buying the appropriate CNC rebar building machine for your operation. Making the effort to check out the right machine will pay off big.

How To Buy Kangaroo Jump Rides

When you think about how well known kangaroos are for their ability to jump, it only makes sense to incorporate them into the design of a bouncy carnival ride. Children and adults alike love riding on kangaroo jump rides (Аттракцион карусель кенгуру). If you’re never seen one of these rights in person, you are in for a real treat.

The basic design is fairly simple. A series of arms extends out from a central hub. At the end of each arm are a couple of seats designed to look like kangaroos. People sit in the seats and strapped themselves in. Once they are in place, the operator turns the ride on and it begins to spin. As it spins, each of the arms bounces up and down as if the kangaroos are jumping. The people riding on the kangaroos experience the thrill of bouncing through the air as the ride spins around and around. In a way, it is like they are riding in the pouch of a real-life kangaroo.

Investing in one of these rides for an amusement park, family entertainment center, or mall can really pay off. Because of its eye-catching design, it tends to be one of the most popular rides at any part. That means that it will also be one of your best earners. People will gladly spend money or exchange tickets for a chance to experience the thrill of the ride (Экстрим аттракционов).

Jumping-Kangaroo-Ride

Because these rides are somewhat of a specialty item, you may have to do a little bit of hunting to find one for sale. The good place to start is by searching the Internet for kangaroo jump rides for sale (Аттракцион карусель кенгуру для продажи). A quick search in your favorite search engine should bring up several different manufacturers who make these rides. Beston is a great manufacturer to sale many kiddie rides from China (Производитель детских аттракционов продажа из Китая)!
Contact each of the manufacturers to see whether or not they currently have any inventory available. If not, they may be able to point you in the direction of used rides that are for sale. Alternatively, they may also be able to custom design a ride specifically for your location.

Ideally, however, they will have exactly what you need in stock. If they do have a right available, ask them to send detailed pictures of it to you. Additionally, consider flying out to see it in person. It is always best to inspect a carnival ride closely before you buy it. That way you can make sure that it is well made and does not have any flaws. This will help keep you from buying faulty equipment or from spending money on something that doesn’t live up to your expectations.
kangaroo jumped rides for sale
When it comes to how to buy kangaroo jumped rides (Купить аттракцион карусель кенгуру), your best bet is to turn to the Internet. By doing so, you can search for these rides throughout the country, making it easy to find exactly what you are looking for. Although they do require somewhat of a large upfront investment, chances are you can quickly recoup your money over time as children and adults flock to the ride to experience the joy of bouncing up and down as they spin through the air.

Electric Bumper Boats For Amusement Rides

Are you hoping to get the amusement park up and running? You will know it begins with good bumper boats water amusement rides for sale that you can market to the public. You want to have your eye on the best because, in the water business, you will lose out when others maximize what they are doing.

You need to have a good understanding of what you are doing because the right option is always the one that sells.

Begin with the electric water bumper boats rides for sale as they are best going at this point.

Where do you find them? What do you look for? Here is more on that.

water bumper boats

1) Go Online

Have you gone online to see who the best suppliers of bumper boats are? Do you know where to get this information from? You will be able to get onto Google and do most of the searches from there.

You don’t have to get fancy with your approach and that is why people get perplexed.

They think about all of the hurdles and assume it is time to quit.

You have to do a simple search online and it will give you a boatload of information on who the right suppliers are and how much they are charging for the amusement park attractions.

kiddie bumper boats

2) Find Reputable Manufacturer Only

When you have a list of manufacturers, it is now time to think about who you want to go with. You don’t just select one and hope for the best.

You need to think about a reputable option that is reliable in the long-term.

The manufacturer and their reputation might be the most important thing for you. If they are reputable, you will know they are not going to give you something that will break apart.

This is going to heavily used, so you want to be certain about the mileage you are going to get out of the boats in the long-term.

water amusement ride

3) Glass Fiber Is The Best

You need to have a feel for the materials you are going to need too. This means what will the boats be made out of that you are going to use?

They should be made out of glass fiber as that is what you will want.

There is nothing special about going to a solution that is mediocre and is going to fall apart on you.

Why would you want bumper boats that are not able to handle bumps? It does not make sense!

You want to find bumper boats from A Reliable Bumper Boats Supplier that are going to put your water business to the next level instead of something that will drown what you have going. Look at the boats as something you will invest in for a while and something you will want to put your heart into.

Don’t think this is a journey where you are not going to find anything good to go with.

You can make positive changes, you just need the heart to pursue it.

The water business is a great one for those who are committed and know what the market needs. Check http://bestonbumperboats.com/electric-bumper-boats-for-sale/, you will get more electric boats rides for your business.

Advantages Of Tyre Oil to Diesel Distillation Plants

Tyre to diesel plant uses waste tires to get fuel. The fuel is refined with distillation technology to come up with diesel oil.

Properties of Tyre Pyrolysis Oil Distillation Plant

Tires to oil machine consists of four main components. They include four reactors, vacuum cooling unit, a filtering unit and de-dusting unit. Currently, this plant has the most efficient machinery used to refine tyre oil to diesel. Besides, it is the best energy saving refinery plant available in the market. Nowadays, the market has competitive pyrolysis plant price.

To ensure the final product, which is diesel, is of high quality and free of impurities, the machine utilises a three steps purifying unit.

Tyre Oil to Diesel Distillation Plant

Advantages of tyre oil to diesel distillation plant

1. Most plants that use heating systems are dangerous to the environment and are fuel costly. However, the tyre to diesel plant requires less fire fuel making it friendlier to the environment and economically feasible concerning fuel costs. The system is well sealed to prevent the release of tyre smoke and smell making it even more environmentally friendly. Otherwise, we use tire recycling equipment to reuse tyre.

2. The tyre oil to diesel distillation plant resorts to a heat transfer system to heat. The system can heat the entire reactor. The design also allows for the production of heat that can maintain high temperatures in the reactor for a longer period. Therefore, the system as a whole saves much fuel and operates faster.

3. The waste oil distillation machine uses continuous manufacturing process in which once you feed the reactor with waste tyres (Do you want to konw continuous pyrolysis plant design?); they are heated into gaseous oil, which flows into the next units. As the reactor burns up the tyres in it, waste tyres need to be added continuously and the process goes on saving more time, unlike batch manufacturing in which the feed cannot be continuously added to the reactor.

4. The plant is easy to operate and clean.

Waste Oil Distillation Plant in Ukraine
Waste Oil Distillation Plant in Ukraine

The final product of tyre oil to diesel distillation plant

The end product from tyre to diesel plant is diesel fuel that is 80-90% pure, which is different from mined diesel. Click here to know more information: https://BestonTurkey.com/.

Applications of tyre oil to diesel distillation plant

The tyre oil to diesel distillation plant manufactures diesel, which is used in generators, burners, industrial and farm machinery. Modern diesel engines use a 30%-50% petro-diesel mixture but standard diesel from waste engine oil can be used on its own in many applications.

The impact to the environment of tyre oil to diesel distillation plant

The tyre oil to diesel distillation plant is has a positive impact on the environment because it resorts to wastes which are harmful to the environment. The plant recycles non-degradable and environmentally harmful wastes.