1.solder material 2.used low temperature soldering 3.Sn-8Zn-3Bi ,used manual soldering ... electronic components, household electrical appliances, transformersWelding ProcessLiquid phase temperature(Melting moint):about 227oCLine diameter:0.6mm,0.8mm, ... then between high or low temperature. Choose high temperature for easily accessible connections and low temperature for smaller, crowded connections. ...