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About product and suppliers:
        Alibaba.com offers 29 carbon steel companion flange products. About 100% of these are flanges. 

A wide variety of carbon steel companion flange options are available to you, such as asme, ansi, and iso. You can also choose from free samples. 

There are 29 carbon steel companion flange suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of carbon steel companion flange respectively. 

Carbon steel companion flange products are most popular in Mid East, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 21 with ISO9001, 17 with Other, and 6 with OHSAS18001 certification.