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About product and suppliers:
        Alibaba.com offers 15,293 expansion flange products. About 92% of these are pipe fittings, 1% are flange, and 1% are flanges. 

A wide variety of expansion flange options are available to you, such as ansi, bs, and iso. You can also choose from stainless steel, carbon steel, and alloy steel. As well as from free samples, paid samples. 

There are 15,390 expansion flange suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 99%, 1%, and 1% of expansion flange respectively. 

Expansion flange products are most popular in Mid East, Domestic Market, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 14,869 with ISO9001, 2,808 with Other, and 968 with ISO14001 certification.