... .B,Steel Grade: SA53B and speciation O.D:1/2"-28",21.34 -711.2mm W.T: SCH10S- SCH1202.Seamless steel pipe ... .B,Steel Grade: SA106B and speciation O.D:1/2"-28",21.34 -711.2mm W.T: SCH10S- SCH120;3.Seamless steel ... ,st35.8-st45.8/1, speciation O.D: 1/2"-28",21.34-711.2mm W.T: SCH10S- SCH120;4.line Pipe ... ,B,X42,X46,X52 (PSL1)and speciation O.D: 2"-28",60.3-711.2mm W.T: SCH10S- SCH120;5.Casing ...