Producing compose alloy of copper and tungsten with powder metallurgy, containing from 10 to 50 percent of copper weight. Normally used for the contact point of switches and circuit breakers filled with oil or SF6 gas. -Circuit breakers contact for the Extra- high voltage, Arcing contacts, Pad mount switches, Overhead switches, Load tap changers, Starter contacts,etc ▶ Composition : Tungsten (60% ~ 80%) + Copper (40% ~ 20%) ▶ Customers : - Korea : HICO (Hyosung), LSIS, DONG-NAM, KERI, etc - U.S.A : Southern States,LLC (U.S.A)