... High-class Silver Brazing Powder is white powder,strong activity. 1,The High-class Silver Brazing Powder is white powder,strong activity. 2,In ... of 550~870°C the High-class Silver Brazing Powder cooperates with silver base brazing copper,copper alloys,steel,stainless steel ... other welding methods.4,The High-class Silver Brazing Powder is widely used in refrigeration ,air condition,hardware,glasses.