... Powder is white powder,strong activity. 1,In Refrigeration Copper Brazing Powder is white powder,strong activity.2 ... of 850~1150°C ,In Refrigeration Copper Brazing Powder cooperates with copper base brazing,copper alloys,steel and stainless steel,can ... other welding methods.4,In Refrigeration Industrial Copper Brazing Powder are widely used in refrigeration,air-conditioning,hardware,glasses,electric ...