Assertion: solder's flux | /r/AtLocation | rosin
Facets:
Source sentences:
text: Common fluxes are: ammonium chloride or resin acids (contained in rosin) for soldering copper and tin; hydrochloric acid and zinc chloride for soldering galvanized iron (and other zinc surfaces); and borax for brazing, braze-welding ferrous metals, and forge welding.