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Nanyang Jinguan industrial group (i.e. Nanyang Jinguan technology reform and) is a well-known domestic zinc oxide high voltage resistor and zinc oxide arrester production base is a key national high-tech enterprises and Henan Province high-tech enterprises. Our company since the late 70s of last century took the lead in the country began to research, development and production of zinc oxide high voltage resistor and metal oxide arrester.