1)astm a53 sch 40 steel pipe 2)OD:1/2"-48" 3)WT:1-160mm 4)Type:SSAW,LSAW,Seamless 5)Standard: ... 40 steel pipe SizeSeamless Pipe: 1/2”~48”, DN15~DN1200, OD21.3MM~1219.2MM ,WT: 1-160mmLSAW pipe:1/2"-56", DN15-DN1400 , OD21.3 ... the copy of B/L) Equipment Quality Control: Our products :carbon steel ,alloy steel ,stainless steel pipes and pipe fittingssuch as: long/short radius elbows ...