Seamless steel pipe Size:OD:20.34-610MM,W.T:5-80mm,length: ... ,ASTM,GB Seamless steel pipe1Type: seamless pipes, welded pipes, welded pipes, rectangular pipes, square pipes, polished pipes, seamless tubes.2 Process methods: cold draw and cold rolled3 ... .6 Applications: Chemical Industry, Petroleum, Medicine, Food, Machinery, Construction, etc. seamless steel pipe