... approve solder bar details : FeaturesTin solder include Tin-Lead solder bar and Lead-free solder bar.1) It can applied in radio, ... liquid flux, rosin liquid flux, water-soluble liquid flux.Kinds of Product:1)Tin solder2)Lead-Free solder bar and wire3)Tin ... 840 °F) is called 'hard soldering', 'silver soldering', or brazing.Lead-free solders in commercial use may contain tin, copper, silver, bismuth ...