... precious metals such as gold, platinum, silver, copper, iron, stainless steel, aluminum and other metal smelting.The ideal ... etc,Model and Meling Capacity ModelGold silver or copperSteel iron or stainless steelaluminumTX—152KG0.5KG0.5KGTX—253KG-6KG1KG- ... 6 minutes, steel and iron smelting in 5-10 minutessimple equipment installation and convenient operation. laboratory small cast iron melting furnace