... anti-oxidation element, Melting, mixing, testing, molding ,bright solder Lead-free solder wire(Sn96.5Ag3Cu0.5):Alloy compositionSn96.5Ag3Cu0.5, good ... beclassified according to the different inner core solid corewire,rosin-based flux, synthetic resin flux,water-soluble welding cores. APPLICATION ... alignment will not tangle. When soldering tip less residue. Lead-free solder wire(Sn96.5Ag3Cu0.5)