There Tin species: 1,63 / 37 solder (Sn63 / Pb37) 2, electrolysis of pure tin (tin of high purity electrolytic treatment) 3, anti-tin oxide (add high in antioxidants) 4, wave soldering tin (for crest welding) 5, high temperature solder (400 degrees welding) to prevent a lack of available degree of solder solder effect, 35 and 40 degrees and 40 degrees to distinguish bad solder joints is only a small part of the top of the white solder Price, surrounded by bright accounted for 70% -80% of the total wholesale solder solder, solder joints whitish top 35 degrees accounted for 60% -65% of the solder joints, four 周发亮 accounted for 35% -40% of the entire solder joint 30 The pads top 80% of the entire white pad, only the bottom edge are lit around 45 degrees all bright solder joints basically only the top 5% -10% of the solder joints whitish. solder Wholesale | FUJIE solder (certified) | Sanmenxia solder bar provided by the Zhengzhou City Fujie Soldering Materials Co., Ltd. Zhengzhou City Fujie Soldering Materials Co., Ltd. (www.fujiehanxi.com) (www.fujiehanxi.com) is Zhengzhou, electronics, electrical products processing leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. In FUJIE solder leadership with the staff warmly welcome all inquiries negotiations to create FUJIE solder a better future.