... wire) 8, dedicated lead-free solder bar/wire lamp (the lamp for the modern lighting industry, welding and development) 9, ... 7227304570low cost, the most commonly used aLead-free solder for general welding Sn96.5Ag3.0Cu0.5217405878high cost, relatively ... with high purity .Purpose: leadless soldering in high temperature for electronics industryPhysical properties:(1) Liquid temperature: about 227(2 ...