1.Products: Line Pipe 2. Standards: API 5L PSL1&PSL2 3. Steel Grade: Grade B, X42, X46, X52, X60, X65, X70, X80 1.Products: Line Pipe 2. Standards: API 5L PSL1&PSL23. Steel Grade: Grade B, X42, X46, X52, X60, X65, X70, X804. Tolerance: by the standard5. Size: Outer Diameter(OD): 60mm-720mm(seamless), 219mm-2420mm(welded); Wall Thickness(WT): 4mm-60mm; Length: 6m-12m 6. Surface Finish: Oiled or ...