gr b api 5l steel pipe online manufacture

20# Steel Pipe High Precision Seamless Cold Rolled Alloy Steel Pipe Tolerance:15%, 20% Processing Service:Welding, Punching, Cutting, Bending, Decoiling Oiled or Non-oiled:Slightly Oiled Invoicing:by actual ... Read More

DIN1626 ST37 S235JR SS400 Bright Surface High Precision Cold Rolled Seamless Steel Pipe For Auto Parts Standard: ASTM, DIN, JIS, GB, EN, BS. Steel Grade: ST37,ST42,ST45,ST52. Out Diameter: 20-200mm Thickness: 0... Read More