Medium frequency induction melting furnace 1. melting copper, aluminum, steel ect. 2. 0.1-90T ... mainly include medium frequency power supply,capacitor box,cables,3pcs heating furnaces,feeder,control box,Closed-loop air cooling shower cooling ... once again,if still fails one time,so it's not approved.5.protective test:testing one by one6. Heating test:overall ...