3810            |    Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods.
3810.10.00   - Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials
3810.90.00   - Other