... ) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR 3) Standard: ASTM/ASME - A106, A53, A179, A192, A210 ... pressure purpose Production Standard, Grade, Steel No: ASTM A178 Grade A, C, D ASTM A192 ASTM A210 GradeA-1, C BS3059-I 320 ... .8 DIN1629 ST37.0, ST44.0, ST50.0 JIS G3454 STPG370, STPG410 JIS G3461 STB340, STB410, STB440 GB5310 20G, 15MoG, 12CrMoG ...