... graphite axis, rotor, impeller, roll; dilute precious metals, nonferrous metals smelting with fine cast graphite die, carbon tube, ... crystal furnace with heater, insulation screen, supporting graphite products; machinery seal with static ring, bearings, shafts, ... fasteners, vacuum pump blades, vanes. Special shaped graphite products are widely used in metallurgy, smelting, petrochemical, machinery ...