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125 double flange cement butterfly valve products are offered for sale by suppliers on Alibaba.com, of which butterfly valves accounts for 81%. A wide variety of double flange cement butterfly valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, alloy and aluminum alloy double flange cement butterfly valve,as well as from black, silver, and red double flange cement butterfly valve,