CN 7306 · iron steel
CN 7306 — Other tubes, pipes and hollow profiles, welded, of iron or steel
Welded steel tubes and pipes — ERW (electric resistance welded), submerged arc, spiral. Line pipe, structural tube, water pipe.
Precursors to ask your supplier about
- Flat-rolled coil (CN 7208, 7209, 7211) origin and emissions
- Welding method and energy use
Typical production routes
- ERW, LSAW, SSAW