38.10 | | 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 | 000 | Pickling preparations for metal surfaces; soldering, brazing or welding powders and pastes consisting of metal and other materials |
3825.50 | 000 | Wastes of metal pickling liquors, hydraulic fluids, brake fluids and anti-freeze fluids |