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

2) Standards: as per ASTM, DIN, JISG, YB/Z12-77YJZ84

3) Surface: oiled or black painted to prevent rust

4) Marking: as per customer\\\'s requirement



Commonly used steel grade:

GCr15, GCr5Mo, SAE52100/SAE8620



Inner packing:

Caps on two ends of every pipe



Outer packing:

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