What is galvanized seamless steel pipe

Hot dip galvanized seamless steel pipe: The amount of zinc plated by hot dip is relatively high, with an average zinc coating thickness of over 65 microns. Its corrosion resistance is much higher than that of hot-dip galvanized pipes. A legitimate manufacturer of galvanized pipes is allowed to use cold galvanized pipes as water and gas pipes. The galvanized layer of cold galvanized steel pipes is an electroplating layer, which is independently layered with the steel pipe substrate. The zinc layer is relatively thin and simply adheres to the steel pipe substrate, making it easy to fall off. Therefore, its corrosion resistance is poor. In newly built residential buildings, it is prohibited to use cold galvanized steel pipes as water supply pipes.