api 5l carbon steel pipe X42 2) OD 19.05-508mm WT: 1-60mm 3) ASTM , DIN, JIS, EN, ... API, BS Standard 4) SGS, VOC, BV, CE low carbon seamless steel pipe api 5l ... ) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR 3) Standard: ASTM ... 460, 622-490, S1, S2, TC1, TC2 EN10216-1 P195TR1/TR2, P235TR1/TR2, P265TR1/TR2 EN10216-2 P195GH ...