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1301 welded diaphragm valve products are offered for sale by suppliers on Alibaba.com, of which other valves accounts for 60%, control valves accounts for 13%, and ball valves accounts for 9%. A wide variety of welded diaphragm valve options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, alloy and carbon steel welded diaphragm valve,As well as from white, silver welded diaphragm valve,