... b) ASTM A213, ASTM A312, ASTM A269, JIS G3459, JIS G3463, JIS G3448, DIN174585. Steel grade ... or as per customers requirement10) Certification: ISO9001.2000, API, ... Q295, Q345ASTM A53-98 ASTM A192 ASME S192 ... in oil wellsAPE SPEC 5LA, B, X42APISeamles Steel Tubesand ... ASTM A161-94Seamless steel tubesfor petroleum crackingGB9948-8610, 20, 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, JIS G3441-1988 stainless seamless ...