The seam steel pipe and seamless steel pipe are divided according to the processing form. The seam steel pipe is generally welded. The seamless steel pipe has two methods of cold drawing and hot rolling. The carbon steel pipe is in terms of material, and the galvanized pipe is the surface of the welded pipe that is galvanized after production.

Generally speaking, seamless steel tubes are used for those with high requirements on the transport carrier, such as pressure, environment, maintenance, corrosion, and temperature. Seam steel pipes are used for those with low pressure and temperature requirements, such as domestic water pipes and gas pipes.