... pipe, steel pipe, steel line pipe, API 5ct 2. Specification: 1) OD: Seamless 1/2"-24" DN15-DN600, Welded up ... Sch160, STD, XS, XXS 3. Welding Type: 1) Seamless Steel Pipe, 2) Seamed/Welded Steel Pipe: ERW Steel ... A53, Gr. B, ASTM A105, ASTM A234 Line Pipe: API 5L Gr. B, X42, X52, X56, X60, X65, ... ASME/ANSI, ASTM, DIN, JIS, BS, EN, GB, API 6. Productive Technology: Hoe rolling, Cold rolling, Cold drawing ...