... a106 b 2) OD 19.05-508mm WT: 1-60mm 3) ASTM , DIN, JIS, EN, API Standard 4) SGS, VOC, BV ... (Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR 3) Standard: ASTM/ASME - A106, A53, A179, A192, A210(A1 ... /C), A519(1020/1025/1026), A213(T5/T9/T11/T12/T22), ...