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About product and suppliers:
        Alibaba.com offers 96,513 carbon steel flange products. About 29% of these are flanges, 15% are pipe fittings, and 6% are valves. 

A wide variety of carbon steel flange options are available to you, such as carbon steel, stainless steel, and alloy steel. You can also choose from din, ansi, and asme. As well as from standard, nonstandard. And whether carbon steel flange is free samples, or paid samples. 

There are 95,362 carbon steel flange suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 98%, 1%, and 1% of carbon steel flange respectively. 

Carbon steel flange products are most popular in Mid East, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 49,696 with ISO9001, 24,630 with Other, and 8,236 with ISO14001 certification.