7304312030
- Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel
- Other, of circular cross-section, of iron or non-alloy steel
- Cold-drawn or cold-rolled (cold-reduced)
- Precision tubes
- Of an external diameter not exceeding 406,4 mm and with a Carbon Equivalent Value (CEV) not exceeding 0,86 according to the International Institute of Welding (IIW) formula and chemical analysis