1.Certificate: API, ISO certificate 2.: Size: 60mm-273mm 3: Wall thickness: 3. ... ,P110850002Oil casing Pipe, joint material J55,N80,L80-1,C90,T95,P110,Q125,9Cr,13Cr2100003Line pipe B,X42~X80200004Transmission fluid tube 10,20,Q295 ... high-pressure fertilizer equipment10,20,16Mn,15Mnv,12CrMo,15CrMo9000 carbon seamless steel pipe