Shanghai Dahua New Type Brazing Filler Metals & Fluxes Factory specializes in R & D (research and development) and production of various brazing and soldering filler metals or fluxes and fire control products. The brazing and soldering filler metal series of our factory include: silver-based, copper-based, aluminum-based, nickel-based and tin-based products, etc., and are available with sheet, cast rod, wire, powder and grains in terms of shape. The brazing and soldering flux series include: silver brazing fluxes, copper brazing fluxes, aluminum brazing fluxes and environmental-friendly non-corrosive aluminum brazing fluxes, etc., and are available with powder, paste and liquid in terms of shape.