Our company, as one of the drafters of the Lead free solder material GB standard, always pays more attention on development and produce of lead free solder material, and now had opened up more specifications of lead free solder which are far exported to European and American market. We had applied for the four patents on the lead free solders, and one of them had been authorized. We now produce the Lead Free Solder Wirewhich lead content is equal or less than 300ppm and 100ppm for the users' choice.Certicate of Invention Patent No: ZL03129619X Specifications: Sn30ZnRE, Sn5SbRE, Sn0.7CuRE, Sn0.3Ag0.7CuCe, Sn3.5Ag0.5CuCe, Sn3Ag0.5CuCe, Sn0.3Ag0.5CuCe, etc. Packing: Export carton.