... .7): according to use of temperature is divided into two kinds 300-400,250-300oC. Lead-free solder wire(Sn99.3Cu0.7 ... Sn-Cu0.7Solder features1.High strength, good mechanical properties and solder joint reliability.2.The sensitivity of impurity is low, stable ... . small diameter 0.3mm, 0.5mmAll specification :1.Tin-lead solder wire Sn70Pb30,Sn60Pb40,Sn55Pb45,Sn50Pb50,Sn45Pb55,Sn40Pb60,Sn30Pb702.Lead-free ...