... soldering 3.Sn-8Zn-3Bi ,used manual soldering 4.lead free type 5. SGS approve solder material details :welding material ... ProcessLiquid phase temperature(Melting moint):about 227oCLine diameter:0.6mm,0.8mm,1.0mm,1.2mm,1.5mm,2.0mm ... diameter of the solder wire, from between 0.01 inch (0.25 mm) to 0.125 inch (3.25 mm). You ... core so that you don’t forget. diameter 0.5-3mm Sn-8Zn-3Bi solder material