1) Sizes (O.D. x T): form 6 x 1mm to 168 x 12mm

2) Standards: GB/T8163, ASTM A53, ASTM A106, JISG3452, JISG3454, DIN1629, API5L

3) Surface: oiled or black painted to prevent rust

4) Marking: as per customer\'s requirement



Commonly used steel grade:

ST33, ST37, S185, SS330, Q195, Q215, Q235 10, 20, 09MnV, 16Mn



Inner packing:

Caps on two ends of every pipe



Outer packing:

Hexagonal shape bundles wrapped with strong steel trip or according to customers\' requests