1)api 5l carbon seamless steel pipe 2) OD 19.05-508mm WT: 1-60mm 3) ASTM , DIN, JIS, EN, API, BS ... seamless steel tube/pipe 2) Certificate: ISO9001: 2000, PED(Pressure Equipment Directive), API 5L, API 5CT, TS16949, DNV, KR 3) Standard: ASTM/ASME - A106 ... 12Cr2MoG, 15CrMoG, 12Cr1MoVG, 12Cr2MoWVTiB GB9948 10, 20, 12CrMo, 15CMo GB3087 10, 20 Delivery Condition: Annealed, Normalized, Normalized and ...