1. ERW SPIRAL HIDING ARC WELDING STEEL PIPE 2.GB/T19001-2000 IDT ISO9001:2000 3.API SPEC 5L ; GB/T9711.1-97; SY/T5036-83;

1. ERW SPIRAL HIDING ARC WELDING STEEL PIPE2.GB/T19001-2000 IDT ISO9001:2000 3.API SPEC 5L ; GB/T9711.1-97; SY/T5036-83;

4. thickness: 5-25mm 5.OD: 219-2420mm 6.material: Q195 Q235,Q345,A53,A106,ST37,

7. mainly used for oil, gas well drilling and oil and gas transportation. It includes oil drilling pipe, oil casing.

Erw Spiral Steel Tubes