1) Sizes (O.D. x T): from 6 x 1mm to 168 x 12mm
2) Standards: ASTM / ASME213, A312, A269, JIS G3459, G3463, DIN17458 
3) Surface: oiled or black painted to prevent rust
4) Marking: as per customer\\\'s requirement

Commonly used steel grade:
SUS304, 304L, 321, 316, 304, 316L, 321, and 310S

Inner packing:
Caps on two ends of every pipe

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