... flux, rosin liquid flux, water-soluble liquid flux.Kinds of Product:1)Tin solder2)Lead-Free solder bar and wire3)Tin ... , plumbing, and assembly of sheet metal parts. Manual soldering uses a soldering iron or soldering gun. Alloys that melt between 180 and 190 ... point above 450 °C (840 °F) is called 'hard soldering', 'silver soldering', or brazing.Lead-free solders in commercial use may contain ...