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About product and suppliers:
        Alibaba.com offers 4,367 middle flange products. About 6% of these are flanges, 1% are flange, and 1% are other machinery & industry equipment. 

A wide variety of middle flange options are available to you, such as carbon steel, stainless steel, and steel. You can also choose from din, asme, and jis. As well as from gate, deep groove, and ball. And whether middle flange is flange, or flanged. 

There are 4,388 middle flange suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Vietnam, and Taiwan, which supply 99%, 1%, and 1% of middle flange respectively. 

Middle flange products are most popular in Southeast Asia, Mid East, and Africa. 

You can ensure product safety by selecting from certified suppliers, including 784 with ISO9001, 189 with OHSAS18001, and 168 with ISO14001 certification.