... furnace 1.For smelting iron,steel,copper,gold, silver,alu 2.Energy saving 3.Best pric Medium frequency ... ApplicationUsed for smelting non-ferrous metal, ferrous metal and nonmetallic part. Our factory produce smelting furnace and vacuum smelting furnace. ... used for smelting steel, iron, copper, stainless steel, aluminum, gold, silver, precious stones, metallic and non-metal;The vacuum melting furnaces ...