The steel round (cylindrical) shell of the tank is built from two-layer enameled sheets coated on both sides. The sheets are attached with special high-grade bolts and sealed by constantly flexible silicone (sealant). The surface .of connecting material and the shell itself are ...
Various types of roofing nails Introduction Roofing nails also called clout nails are usually used in the roof. They can made of low carbon steel wire, copper, aluminum, stainless steel and so on. They have different finish, to fit the customers’ requirements. Specification ...
Brand Name:POLYTECH Place of Origin:Zhejiang, China PVC Corrugated Roofing Sheet Production Line ...