... :Shape&Tolerance:WireAppearance:Surface bright , no dirtWeight :Net weight about 1KG/rollPacking:10 rolls/boxApplication:For electronic components, household electrical appliances ... , transformersWelding ProcessLiquid phase temperature(Melting moint):about 227oCLine diameter:0.6mm,0.8mm,1.0mm,1.2mm,1.5mm,2.0mm,2 ... a flux core so that you don’t forget. diameter 0.5-3mm Sn-8Zn-3Bi solder material