... SSAW,LSAW,Seamless 5)Standard:ASTM,ANSI Type astm a53 sch 40 steel pipe SizeSeamless Pipe: 1/2”~48”, DN15~DN1200, OD21.3MM~1219 ... ---1996, DIN2605 / 2615 / 2616, JIS P2311/2312MaterialASTM A106,A53GRB,A53-A,A106-A,A192,A226,A315-B,A106-B,A178-C,A210 ... the copy of B/L) Equipment Quality Control: Our products :carbon steel ,alloy steel ,stainless steel pipes and pipe fittingssuch as: long/short radius ...