10 Ft Galvanized Steel Iron Pipe 0.5-80 Mm Solid EMT Oil Pipeline GB ERW Hot Dipped Galvanized Steel Welding Processing Plumbing

Galvanized steel pipe is divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, the latter is also advocated by the state can be used temporarily. In the 1960s and 1970s, developed countries began to develop new types of pipes and banned galvanized pipes one after another. China's Ministry of Construction and other four ministries and commissions also issued a document explicitly banning galvanized pipes as water supply pipes from 2000. Galvanized pipes are rarely used for cold water pipes in new residential areas, and galvanized pipes are used for hot water pipes in some residential areas. Hot dip galvanized steel pipes are widely used in fire fighting, electric power and highway.