BOWE bo wei welding industry low supply high-quality brass rod: common HS221 brand of copper brazing alloy, and can effectively eliminate porosity, mechanical performance is good, the low melting point, good fluidity, suitable for oxyen-acetlene geo-drilling brazing copper brass, copper and nickel alloy castings, steel, and also used to enchase carbide cutting tools are applicable range is very wide copper solder, brazing must  strictly clear before soldering and brazing alloy surface dirt, grease, oxide brazing best clearance for 0.025 mm to 0.1 mm. When soldering flux soldering to cooperate BW301 solder powder , or use solder paste can obtain good soldering.