Specifications: 1) Standards: ASTM A519, DIN 1629, DIN 1630 2) OD: 10 - 141.3mm 3) Wall: 1 - 12mm Inner packing: 1) Unprotected 2) Internal and external oiled 3) External varnished with black lacquer 4) Plastic plugs or protectors Outer packing: 1) In hexagonal bundles wrapped with strong steel trip 2) Bundle weight: 4,000kg (8,800lbs.) 3) Tubes under OD 60.3mm with technical details marked on tags tied to both sides of the bundle 4) Tubes above OD 60.3mm color stenciled