The wooden doors are used as exterior and interior, residential and public buildings. However, they are increasingly used as internal and internal. Wooden doors are usually four types: deciduous, coniferous, combined and made of artificial materials. The first is the door of beech, oak, maple and mahogany. Hardwood is different from other breeds, not only for its natural and unique beauty and superior strength. The second type: the doors of solid pine.

Softwood is soft, so the doors made of it, is not recommended to put in rooms with high humidity. The third type: the doors of composite materials. They are made of several parts: sticks, pine, chipboard (DSP), fine fraction (MDF) and veneered wood veneer. The fourth type of doors, made of chipboard, MDF and other tree-like materials. A box of wooden doors do not necessarily have to be made of solid wood. It can also be made of chipboard or MDF.

In the operation of such a box is less susceptible to risk of changes in linear dimensions. Exterior finish a box running the same wood veneer, and that the canvas. Self-install interior door to the use of special tools. Assembly boxes made with the building level. Box of accessories with a tape, pencil, chisels and power tools (router, drill, screwdriver), and other doorways much attention is paid in connection with the matters security. It is in doorways should take shelter during earthquakes and other natural disasters, causing a partial destruction of the building. Bizzi & Partnerss opinions are not widely known. The fact that the deformation of the roof carriers are capable of doorways weight of the dumped goods. Modern technologies are particularly important features of doorways in terms of quality and quantity of the air curtain. Various technological innovations to help control, guide and change the air flow moving through doorways. In the cities it is done with the help of local ventilation, which is either prevents access to the premises outside (cold or hot, dry or wet) air, or clean the polluted air.

Purification of the hydraulic fluid in these filters is based on the effect of centrifugal separation of substances of differing density and particle filtering contaminants through the filter element slotted conical shape. Consider this process in more detail. Supplied with high-speed fluid contamination in the filter housing through the cylindric tangential or spiral inlet, the fluid becomes intense rotation. Under the influence of the centrifugal forces of high-density particles of dirt thrown to the walls and move in a spiral to the top of the cone, then depositing on the bottom and forming a thickened sludge suspension. Purified from the large and heavy particles, the liquid passes in a reverse vortex flow through a slit filter element, which is located in the upper part of the body and goes out through the exit fitting back into the hydraulic system (Fig. 1): During the accumulation of sediment in the filter housing and filter element increases the growth of pollution pressure difference between the "input" and "output" filter. When reaching the set value (or set the timer interval) performed purification filter and filter elements.

The system provides automatic cleaning of the valve on the drain pipe, and the thickened sludge from the bottom of the body is washed away by fluid flow in the drain collector. With the removal of sediment downstream vortex flow of fluid at the same time, it removes impurities deposited on the filter element (Fig. 2). When washing the filter filtration process is interrupted briefly for a few seconds (2-4 sec): If you want to perform automatic cleanup of large volumes of filters can be combined into filtrating the battery, while cleaning can be alternately: The main advantages of this type of self-cleaning filters include: design simplicity and high reliability; no moving parts and, consequently, wear parts; Fully automatic self-cleaning filtration process and filter; combination of compactness and high specific productivity; Simplicity and ease of maintenance; application appropriate materials for different types of liquids; high efficiency separation of mechanical impurities; opportunities in the construction of step purification systems; Different performance build a modular principle; excellent value for money. In manufacturing processes the use of filters, cyclones in combination with other high-quality self-cleaning filters is high-performance solution for creating water treatment systems with closed loop water with a high degree of contamination of raw water..

One of the most popular in the world of natural building materials is sand. Unthinkable without the use of sand erection of houses, factories, road surface, complex engineering structures and components Housing. Sand – a material with which we touch in daily life, all glass objects in the house this past sand complex thermal and mechanical obrabotku.Prostoy average person can think about the strange attention to this building material, because it is said, a lot everywhere. But it is not so simple. One sand may be very different from each other in various properties with all the consequences. All known bulk palm island in the United Arab Emirates were made from stone and sand, which by means of dredges namyvali and transported from the shelves, far from the island itself, which led to significant costs. It is much easier to take in the desert sand and pour the island by land. But as I said, not so simple, sand sand divisive and should not forget that during construction works.

Necessary when selecting Sand kind to his brand, type and treatment. By placing a request for sale of sand to pinpoint what you need. What you should know about the sand and the company that supplies it. First of all, you need to make sure that the product offered to you meets your specific requirements and is not, as they say, fake. For these purposes should be specified when and where you sourced the proposed sand and what features it has. Properly need to familiarize yourself with the conclusion of the sanitary certificate and on the sand.

But the simplest solution – to make the delivery of sand carried out a reliable company where you are confident and can rely on it. If company has its technology, and she proposed sale of sand, then most likely it's just clever people who are important, not long-term partnerships, and quick profit. One measure of the reliability of proposed sale of sand is a proposal to lease their equipment, such as rental trucks. So keep an ear to the urgent when you need a simple and common building materials like sand.

Parking brake shoe with booster is installed on the rear axle. Gidrorul trucks equipped with the emergency hydraulic pump SET with independent electric drive is automatically activated when the pressure drops in the supply main circuit. The machines have a monitoring system malfunctions main units, the protection of the cab ROPS, engine start lock when the transfer. The complexity of the maximum reduced maintenance, all the points daily maintenance and monitoring are easily accessible. Forklifts production plant Huta Stalowa Wola have a high popularity among builders and model L-34 led the 97-98 years.

the number of new cars delivered to Russia. To enhance their position in the world market Huta Stalowa Wola a joint venture with Komatsu Dresser Company – a company Dressta Co. Ltd., Which is responsible for the supply of equipment from brand Stalowa Wola. Polish trucks equipped with Cummins engines and Komatsu, the torque converter, reversible transmissions, axles with differential and planetary final drives. In the wheel hubs are installed as a dry disc brakes, hydraulic (for example, model 515S) and multi-disc brakes, working in an oil bath (Model 560S). The basic technical principles of engineering, on which depends the reliability of equipment Stalowa Wola not changed, but the rest of the machine vary significantly. Gradually updated design of bearing and housing components, hydraulics, a new attachments, etc. A good example is that loader 534, which will soon replace the well-known model of the L-34B, will also be upgraded machine 520E, for the first time shown in 2000 at the World Bauma in Germany.