... is divided into two kinds 300-400,250-300oC. Lead-free solder wire(Sn99.3Cu0.7) : alloy composition ... diameter 0.3mm, 0.5mmAll specification :1.Tin-lead solder wire Sn70Pb30,Sn60Pb40,Sn55Pb45,Sn50Pb50,Sn45Pb55,Sn40Pb60,Sn30Pb702 ... .Lead-free solder wire Sn-Cu0.7, Sn-Cu3 ... , Sn-Zn9.0, Sn-Sb5, Sn-Bi58. Lead-free solder wire(Sn99.3Cu0.7)