lead solder bar Sn25Pb75 1.various high temperature soldering 2.especially good in inductance wire,transformer high quality lead soldering barSn25Pb75LED light,PCB,SMT ... item Alloy composition Sn/PbSpecific gravityLiquid temperatureTemperatureApplication63/378.39183220~240Computers, precision instruments, meters, TV, micro technology, coating metals60/408.65190230~25055 ...