Steel Pipes
Executive standard: GB/T912-1989 GB/T3274-1988 EN 10025-1993 DIN17100-80 ASTM A 106/A106M Steel Grade: Q195 Q215A Q215B Q235B Q275 Q345B Q345C Q390B Q390C Q345D Q345E 20# 20Mn2 27SiMn and so on Application: Offshore oil field, bridges, ship, semitrailer automobile axle, machinery, equipment, steel construction curtain wall, steel contraction application, steel pipes for power supporting..
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