Specifications: 1) Size range: 6.35 - 114.3mm (O.D.) x 0.89 - 13.49mm (W.T.) 2) Heat treatment: annealed, normalized, stress relieved, or cold finished 3) Standards: ASTM, ASME, DIN, JIS 4) Continuous stenciling as per requirements 5) Rust prevention treatment, oiled 6) Plastic plugs in both ends 7) Max. hexagonal bundles: 2,000kg, with several steel strips 8) Smooth surface, uniform mechanical property, tight tolerance Inner packing: Two tags on each bundle Outer packing: 1) Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips with one tag tied on the outer package 2) Heavy tri-wall boxes, wooden boxes, slats or frames if clients required