product and sell seamless steel pipe: Grade:A53 Gr.B,A106 GR.B,10 ... 15CrMo,12Cr1MoV wall thickness: 2.0-25.4mm Production Name: seamless steel pipe (Hot Rolled )Standard: ASTM A53, ASTM A106,GBGrade: ... ,square,round ,LZT)OD:18-530mm( the round pipe is OD,the others refer to side length)Section: ... ,RF,BW X NPT,BW X SW etc. For further technical information,pls feel free to contact us! seamless steel pipe