ERW stands for Electric Resistance welded pipe. A plate rolled to become a pipe and welded using Electric Resistance Welding process. Usully for for high diemeter. (cheapest process avaiable)

steel coil-----raw materials for steel products

Round common nail make of super low carton steel(Q195,Q235),Toughness curvature ≥90°,smooth surface of E.G or Polished,Sharp point.

galvanized steel spiral duct description

3D panel is a new wire mesh products, also called double layer welded wire panel, using welding method joining two pieces of welded wire panel together, mainly used in construction. The side panel mesh is commonly 2" opening with 11 or 12 gauge wire, surface with galvanized wire panel or hot dip galvanized wire panel. Inserted EPS size is 2", 2.5" and 4". It's high tensile and is easy to install and these features make 3d wire mesh panels very popular by world construction customers.

c channel-----support of electrical systerm

pu pre-insulated spiral steel pipe Designed for transporting the liquid or gaseous fludis for cold and hot temperatures. Because it is high quality, workmanship, safety and durability, it is a good choice for the pipe system used in chemical industry, food industry, cold industry and so on.

Calcium silicate board, a kind of "green material" board, special environment-protecting function makes it superior to other boards with dampproof and fire prevention capability.

The glass wool is a silk-like material made by fiberizing melted glass and then coating with thermosetting resin through centrifugal blowing process. By means of thermal setting, this material can be further process into series of products for multi-purpose uses, such as glass wool board, blanket, fiber glass air-conditioning duct and so on.

High-strength rock wool board has high mechanical strength. It is suitable for building insulation --- ROOFS and FACADES, COLOR STEEL SANDWICH PANELS and other applications requiring high mechanical strength.