... .tin solder 2.used for manual soldering ,wave soldering 3.1.0mm , 10roll/box , 500g/roll 4.Sn-8Zn-3Bi , lead free type tin ... , instruments and copper, tin and irons and etc.2) Residue is easy to remove by hot air after soldering work if necessary3 ... , plumbing, and assembly of sheet metal parts. Manual soldering uses a soldering iron or soldering gun. Alloys that melt between 180 and 190 ...