Silver Welding Rod for brazing copper parts in airconditioners,freezers,refrigerators and motors Silver ... Welding Rod have good wettability,higher strength and toughness of brazing seam and lower melting point.The heating speed should be ... as quick as possible while brazing.The joint is to be bright grey and will return ... .5-15.54.8-5.30The rest1190/6431470/800 brazing alloy