... thickness 5-28mm 4 the lowest price Seamless Steel Pipeseamless steel pipe Is widely used in transportation of oil, natural ... shaft, bicycle stand, as well as construction using steel scaffolding. Steel Pipe Manufacturing circular parts, can improve material utilization, simplify ... (or red ) , polished white, hot dipped zinc galvanizing, 3pe, 2pe, 1pe.5. Process Method: hot rolled, cold rolled , cold ...