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About product and suppliers:
        Alibaba.com offers 1,110 6 inch butterfly valve products. About 91% of these are valves, 1% are pipe fittings. 

A wide variety of 6 inch butterfly valve options are available to you, such as free samples, paid samples. 

There are 1,037 6 inch butterfly valve suppliers, mainly located in Asia. The top supplying countries are China (Mainland), South Korea, and Taiwan, which supply 99%, 1%, and 1% of 6 inch butterfly valve respectively. 

 inch butterfly valve products are most popular in Domestic Market, Southeast Asia, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 569 with ISO9001, 94 with Other, and 72 with ISO14001 certification.