... 1:Quick heating 2:High efficiency 3:Can melt gold,silver,copper,etc. other applications:harden,weld,forge,anneal metal ... High Frequency Electric Silver-smelting FurnaceModel WH-VI-50 about melting .Main Technology PatametersWorker ... high-pressure, very safe for the operator;6, almost no oxide layer, produced no exhaust, no wastewater is generated.7, ...