... solder wire(Sn99.3Cu0.7): according to use of temperature is divided into two kinds 300-400,250-300oC. Lead-free ... solder wire(Sn99.3Cu0.7) : alloy composition Sn-Cu0.7Solder ... ,Sn50Pb50,Sn45Pb55,Sn40Pb60,Sn30Pb702.Lead-free solder wire Sn-Cu0.7, Sn-Cu3.0, Sn-Cu0.6-Ni0.1, Sn ... .75, Sn-Ag4.0-Cu0.5, Sn-Ag0.3-Cu0.7, Sn-Zn9.0, Sn-Sb5, Sn-Bi58. Lead-free ...