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511 butterfly valve dn400 pn10 products are offered for sale by suppliers on Alibaba.com, of which butterfly valves accounts for 87%. A wide variety of butterfly valve dn400 pn10 options are available to you, such as normal temperature, medium temperature and high temperature.You can also choose from stainless steel, butterfly valve dn400 pn10,As well as from ball float, center line butterfly valve dn400 pn10,