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About product and suppliers:
        Alibaba.com offers 39 neck bw flange products. About 82% of these are flanges, 5% are flange. 

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

There are 39 neck bw flange suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of neck bw flange respectively. 

Neck bw flange products are most popular in Mid East, Domestic Market, and North America. 

You can ensure product safety by selecting from certified suppliers, including 22 with ISO9001, 21 with Other, and 9 with ISO14001 certification.
        
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