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About product and suppliers:
        Alibaba.com offers 12,266 weld neck flange products. About 85% of these are flanges, 6% are pipe fittings, and 1% are flange. 

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

There are 11,732 weld neck flange suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 96%, 2%, and 1% of weld neck flange respectively. 

Weld neck flange products are most popular in Mid East, Domestic Market, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 6,430 with ISO9001, 3,413 with Other, and 630 with ISO14001 certification.