... 1.Technique parameter of kechuang medium frequency induction braze welding machine XZ-40B: Model typeXZ-50BInput power50KVAInput voltage380V 50HZMax ... bit,knives,saw bit,saw teeth,steel pipe,copper pipesbraze welding.MeltingGold,silver,copper,steel,aluminous and other metals vacuum ... applicating,embedding plastic to metal,etc. Full Automatic Medium Frequency Induction Braze Welding Machine XZ-50B