... tungsten,molybdenum,iron, copper power 3.efficiency 20-30% IF Furnace1. USAGE IF furnaceIF furnace is mainly applied to tungsten bar, tungsten ... temperature resistance furnace, the working temperature of 200-2500 degree C, widely used in electronic ceramics, porcelain and ceramics, rare earth ... industries.Songshan industry kilns &furnaces will be your best choice. IF furnace