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Tungsten heavy alloy ring

Our firm aims to operating faithfully, serving to all of our shoppers, and working in new technology and new machine consistently for astm b777 wnife sheet, pure tungsten rod, Tungsten alloy ball. Equipped with productive Tungsten heavy alloy ring factory, Xi'an Kefeng Powder Metallurgy Co.,Ltd is a professional China Tungsten heavy alloy ring manufacturer.