... Powder is white powder,strong activity.2,In the range of 850~1150°C ,The Exceptional Copper Brazing Powder cooperates with copper ... steel,can effectively remove oxides and improve the brazing solder wetting properties of the parent material,to compact brazed joint,less ... residue after welding.3,Applied to the flame,induction and other welding methods.4,The Exceptional Copper Brazing Powder are widely ...