… or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings …
Explanatory notes
… or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings … the operation. Zinc chloride, ammonium chloride, sodium tetraborate, rosin and lanolin are the products most …