Application of galvanized steel pipe

　　Galvanized steel pipe is divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, which is also the country to promote the temporary use. The sixties and seventies, the international developed countries began to develop new pipe, and one after another ban galvanized pipe. China Construction Department and other four ministries also issued a document from 2000 to ban 1-1/2" Galvanized Steel Pipe as a water supply pipe, the new district of cold water pipes have been rarely used galvanized pipe, and some residential hot water pipe is used galvanized pipe. Hot galvanized steel pipe in the fire, electricity and highways have a wide range of applications. Hot galvanized steel pipe is widely used in construction industry, such as construction, machinery, coal mine, chemical industry, electric power, railway vehicle, automobile industry, highway, bridge, container, sports facility, agricultural machinery, petroleum machinery and prospecting machinery. Galvanized steel pipe surface is hot dip galvanized or galvanized layer of welded steel pipe. Galvanized steel pipe can increase the corrosion resistance, extend the service life. Galvanized pipe is widely used, in addition to water, gas, oil and other general low-pressure fluid pipeline, but also for the oil industry, especially offshore oil wells, oil, chemical coking equipment, oil heater, condensation Cooler, coal waste detergent oil pipe, and the bridge piles, mine tunnel support tube and so on.