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About product and suppliers:
        Alibaba.com offers 1,789 bw flange products. About 9% of these are flanges, 1% are flange. 

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

There are 1,789 bw flange suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of bw flange respectively. 

Bw flange products are most popular in Northern Europe, Southern Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 1,599 with Other, 1,519 with ISO9001, and 718 with ISO14001 certification.