the solder wire has good performance and high quality we are one of leading factory factory specializes in lead free solder wire,solder bar,tin lead solder wire,solder bar,water atomized copper powder,bronze powder,brass powder,bimetal bush,bearing bush,etc. numbercompositionfusiontemperaturedensityresistivitytensile strengthelongationexpansion rateJA201Sn0.7Cu2277.512.6382472JA202Sn3.5Ag2217.512 ...