| Welded Steel Pipe Straight seam welded steel pipes 1) Outer Diameter: 20 ~ 219mm 2) Wall Thickness: 0.8~ 8mm 3) Spec.: Q195, Q215, Q235, Q345 4) Standards: ASTM-A53A, BS1387-1985, GB/T3091-2001.DIN 5) Packing: Hexagon bundle or According to our clients' demand 6) Used for low pressure liquid delivery, such as water, gas, and oil,construction |