... melting .This type of heating technique is applicable to The gold melting and packing industry (such as sealing of aluminum foil ... operation. which is free of any noise .exhaust gas and dust.6. Elimination of high voltageElimination of high voltage: it requires ... :2,For the precious metals: platinum, palladium, rhodium, gold, silver, copper. Steel, gold powder, sands, tin, tin slag ash all these melting ...