... -8KHZ1-8KHZ1-4KHZ1-2.5KHZ1KHZ0.8KHZ0.8KHZ0.7KHZ0.7KHZ0.5KHZYiphee electric furnace co .,LTD (Guangdong Of China)speciality produce induction smelting furnace,induction ... heat boiler, Attempt Electric Furnace, Forges Electric furnace, Casting induction furnace,medium frequency induction heating equipment,high frequency induction heating equipment, melting aluminum induction ...