1) Sizes (O.D. x T): from 6 x 1mm to 168 x 12mm
2) Standards: GB/T8162, ASTM A500, ASTM A501, ASTM A519, ASTM A501, JISG3441, JISG3444, DIN1626/2-2458, ASTM A53
3) Surface: oiled or black painted to prevent rust
4) Marking: as per customer\'s requirement

Commonly used steel grade:
ST37-2, S235JR, Q235A/B, Q345B, Q390B, SS400, 10, 20, 35, 45, 40Mn2, 45Mn2, 27SiMn, 20Cr, 40Cr, 20CrMo, 35CrMo, 38CrMoAl, 50CrV, 30CrMoSi

Inner packing:
Caps on two ends of every pipe

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