... -XXS Material:API5L X70 Standard:API 5L BG Oil and gas pipe SpecificationsChina StandardSteel GradeStandardseamless steel tubesand pipesfor ... 5CTJ55, N80APISeamless steel tubes foroil casing andtubing in oil wellsAPE SPEC 5LA, B, X42APISeamles Steel Tubesand Pipes ... , 15CrMo, 12Cr2MoISO 9329-2-1997ASTM A161-94Seamless steel tubesfor petroleum crackingGB9948-8610, 20, 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, JIS ...