... API, BS, JIS, GB, DIN SSAW STEEL PIPE SpecificationsChina StandardSteel GradeStandardseamless steel tubesand pipesfor structural purpose GB/T8162-199910 ... 20ASTM A179, ASTM A192ASTM SA179,SA192,BS3059Seamless Steel Tubes for high pressure --Chemical fertilizer equipmentGB6479- ... -94Seamless steel tubesfor petroleum crackingGB9948-8610, 20, 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, JIS G3441-1988 SSAW STEEL PIPE