... non-ferrous metal, ferrous metal and nonmetallic part. Our factory produce smelting furnace and vacuum smelting furnace.The melting ... copper, stainless steel, aluminum, gold, silver, precious stones, metallic and non-metal;The vacuum melting furnaces is mainly used for ... etc) The crucible in the smelting furnace with best quality Top quality and best price Medium frequency induction smelting furnace