Our subordinate enterprise Taizhou Double Winners Imp.& Exp co., Ltd. with its strong ability to integrate resources, Double Winners also has had 5 partner factories which manufactured thread fitting, bronze fitting, clip fitting and solder material, so we also can purchase those goods for you with very well price. Double Winners solder materials: Solder wire, Solder rods, Solder pluxes, Sold strips, Solder preform rings, Solder strips & poil.