... caps BE 4)API certify Carbon Seamless Steel Pipe:1.Seamless steel pipe for general use: ASTM A 53 GR.B, ... -711.2mm W.T: SCH10S- SCH1202.Seamless steel pipe for high temperature:ASTM A 106 GR.B,Steel Grade: ... 711.2mm W.T: SCH10S- SCH120;3.Seamless steel pipe DIN2448/1629,DIN17175, German standard,Steel Grade: st37,st42, ... 34-711.2mm W.T: SCH10S- SCH120;4.line Pipe: API SPEC 5LSteel Grade :A,B,X42,X46,X52 ...