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About product and suppliers:
        Alibaba.com offers 4,668 middle flange products. About 3% of these are flanges, 2% are pipe fittings, and 1% are other plastic products. 

A wide variety of middle flange options are available to you, such as carbon steel, plastic, and stainless steel. You can also choose from din, asme, and gb. As well as from free samples, paid samples. 

There are 4,668 middle flange suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of middle flange respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 1,793 with ISO9001, 157 with OHSAS18001, and 141 with ISO14001 certification.