Straight seam pipe is a kind of welded steel pipe, which refers to the steel pipe with the weld seam parallel to the longitudinal direction of the steel pipe. According to the wall thickness, there are thin-walled straight seam pipes and thick-walled straight seam pipes; according to the shape, there are round pipes, square pipes or special-shaped pipes; Metric welded pipe, idler pipe, deep well pump pipe, automobile pipe, transformer pipe, electric welded thin-walled pipe, electric welded special-shaped pipe and spiral welded pipe.
