... Brazing Powder is white powder,strong activity. 1,In Refrigeration Copper Brazing Powder is white powder,strong activity.2 ... ,In the range of 850~1150°C ,In Refrigeration Copper Brazing Powder cooperates with copper base brazing,copper ... ,In Refrigeration Industrial Copper Brazing Powder are widely used in refrigeration,air-conditioning,hardware,glasses,electric ,hard alloy cutting tools,jewelry, ...