National products manufactures a range of quality and high performance solders, fluxes and pcb chemicals used in electronics, instrumentation, automobiles, telecommunication, computer and other allied industries. National products presents silver solder wires. The solder wires are manufactured from pure and virgin metals and are flux cored. Solder wires are suitable for soldering electronic and electrical application. The post solder residues are non corrosive. It has good conductivity and is most suitable for solar cell applications.