The large core board is made up of two sheets of veneers bonded together in the middle. The price of the large core board is cheaper than that of the thin core board, and the vertical direction (differentiated by the core material direction) is inferior in bending strength, but the lateral bending strength is high. In the middle of the blockboard is a core made of natural wood strips. The thin veneers are glued on both sides. As the name suggests, the core board is one of the most important materials in the decoration. It can be used for furniture and wooden doors and door covers, heating covers, curtain boxes, etc. Its waterproof and moisture-proof performance is superior to particleboard and MDF. When selecting the wood inside, it should not be too broken, and the gap between the woods should be about 3mm. Due to the unsightly appearance of the wood grain on the surface, it is rarely painted directly, and it is usually attached to the plywood. The woodwork such as furniture made of large core board has to pass through two steps of using adhesive board and painting, and the cost is higher. The large core board is divided into 3, 5, and 9 ply boards according to the thickness. You can choose according to the pressure and strength to be accepted. The thicker the price, the higher the price. Gate valve is a relatively common general-purpose valve, the use of a wide range of applications, mainly in water conservancy, metallurgy and other industries, its extensive use of performance has been recognized by the market. Gate Valve,Gate Valve Price,Slide Gate Valve,Gate Valve Types WUXI KVC-VALVE , https://www.wxkaiweixi.com
Gate valve structure: gate valve is the use of the gate and seat to control the opening and closing of the valve. Gate valve mainly has a valve body, valve seat, gate, valve stem, valve cover, stuffing box, packing gland, stem nut, hand wheel and other components. Depending on the change of the relative position between the gate and the valve seat, the channel size can be changed and the channel can be cut off. In order to make the gate valve close tightly, the mating surface of the gate plate and the valve seat are ground.