Ningbo Qianxin Soldering Material Factory is a professional manufacturer that has the taxpayer qualification to produce the soldering tin products , having independent import and export right , We have been devoted our mind to produce treating soldering tin products for many years . Our products contains: solder ware , soldering tin strip, leadless tin , leadless solder tin and so on . The company relies on many years' experience and the continuous innovation, The technology functions of all products have reached the country's GB-9491-88 standard, the product quality is stability , and gains...