Our hot dipped galvanized steel pipes are highly durable, rust-resistant, and suitable for various industrial applications. Hot dipped galvanized steel pipe is mostly utilized in the transmission of coal, gas, and steam, also used for construction, such as scaffolding, greenhouse, and structure. Hot  rolled  galvanizing is the process of coating to protect steel from rusty corrosion. The thickness of zinc layer of pre galvanized pipe is 200-550 g/㎡. Products The straight seam high-frequency welded steel pipe is ...