according to different minerals, different furnaces can be designed here: nickel iron furnace, manganese furnace, copper melting furnace, chrome ore furnace, Magnetite furnace etc., including inlet system, feeding system, roof system, front slagging and tapping system, gas system, power system, cast iron machine, hot blast furnace, thermal instrumentation system. Our furnaces have advantages of high yield, low coke rate, no nodulation, and easy operation. With the top advanced technology, every procedure is the optimal scheme after repeated screening, which makes things more reasonable.