Specifications:1) Sizes(O. D. X T):8mm x 1mm to 114 x 10mm2) Standards: GB/T3087, DIN17175, SAE, BS, ASTM A106, ASTM A2103) Surface: Oiled or black painted to prevent rust4) Marking: As per customer's requirementInner packing:Caps on two ends of every pipeOuter packing:In hexagonal shape bundles wrapped with strong steel trip2MT/bundle