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320 throttling ball valve products are offered for sale by suppliers on Alibaba.com, of which control valves accounts for 6%, gate valves accounts for 5%, and butterfly valves accounts for 3%. A wide variety of throttling ball valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from black, gray and white throttling ball valve,as well as from stainless steel, alloy, and aluminum alloy throttling ball valve,