1.OD:15-630mm 2.WT:2.5-65mm 3.Material: carbon steel(ASTM A 53GRA .A/B),Alloy ,SS Astm,Api5L,Api5CT standard Professional supplier of Seamless steel pipeWe manufacture spiral steel pipe with good quality as per API5L,GB,JIS,DIN ASTM, BS standard and your additional requirements. 1.Commodity Nameseamless stainless steel pipe astm a312 tp316/316l2.StandardASTM A106 ,ASTM A53 , ASTM A179, ASTM A210 ...