Soldering bar of this series used in Yunnan high purity electrolytic tin, lead as a raw material, advanced smelting technology to remove harmful impurities and the solution kept several of them made of gas inclusions and finished welding the various components are in line with GB8012-2000 standard. The Company solder alloy are added antioxidant, operating temperature of 300 degrees below, the solder surface is glossy, very little oxidation of slag, for any form of hot dip soldering or wave soldering.