... .patent product 2.Sn:65% ,consist of 4 elements 3. low tangent,powerful adhesion ,good weldability 4.App:film capacitor ... with low oil, and the product has good mechanical property.3, Low melting point, powerful adhesion to metallized film capacitor ... National Standardization Technical Committee of Weldingthe drafter of National standard for lead- free solder B. abtained Honour: National Key Hi-tech ...