... product 2.Sn:40% ,consist of 4 elements 3. low tangent,powerful adhesion ,good weldability 4.App:film capacitor 1, Based on 40 ... . Satisty customer’s need by adjusting the content of metal elements.2, The surface should be smooth, clean, free from ... :1979. over 30-year-oldfloor space: 40000 square meters= 4 hectaresBuilding area:32000M3Staffs: 160Our annual output exceeds 12000mt.Sales:10000MTTurnover ...