... -3600mm,WT:6-30mm 2.Standard:API 5L PSL1,GB/T9711.1 3.Material:X42-X80,Gr.B,A252 Gr.3 ... 4.SGS inspection 5.Mill supply 1.Commodity NameSpiral steel pipe2.StandardSY/T5037,SY/T5040,ASTMA252,EN10217,EN10219, ... GB/T9711.1,API 5L3.Outer Diameter219.1—3600 mm4.Wall ... PSL1,PSL2 , API 5CT, ISO ,CE ASTM A252 SSAW Steel Pipe Pile