1. Multi rifled seamless carbon steel tube
2. Stadnard&material: ASTM A192, ASTM A210 Gr. A1, Gr. C, DIN17175 ST35.8, ST45.8, GB/T20409 20G, etc.
3. OD: 28.6mm-82.6mm W. T: 5mm-12.7mm L: 9000-12000mm or any negotiated length
4. Type of rib: Type "A", Type"B", Optimized type.
5. No. Of ribs: 4-12
6. Manufacturing method: Cold-drawn
7. Delivery condition: N+T
8. End finish: Plain end with square cut
9. Packing: In bundles tied with steel strips.
10. Marking, oil-coating, black painting to be /confirm/ied.