Hot Rolled Galvanized steel pipe 1) Outer diameter: 20 ~ 219mm 2) Wall thickness: 0.8~ 8mm3) Spec.: Q195, Q215, Q235, Q3454) Standards: ASTM-A53A, BS1387-1985, GB/T3091-2001.DIN5) Packing In bundles6) application:Used for low pressure liquid delivery, such as water, gas, and oilConstruction, fencing use