Specifications low impurities ,better fluidity and wettability,brighter soldered dot.It is specially used in high precise jointing. Common tin bar: standard impurities, composition, good fluidity, bright soldered dot, good reliability and strong stability. High purity tin bar: low impurites,better fluidity and wettability, brighter soldered dot. It is specially used in high precise jointing . It can efficiently to avoid icicle. High purity anti-oxidation tin bar: Excellent anti-oxidation properties, which can effectively reduce the oxidation dross and minimize the watste. Special tin bar: Some special elememts are added amd it can be applied to special conditions and environments. packing:0.5-1kg/rod,25kg/case