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About product and suppliers:
        Alibaba.com offers 2,886 high neck flange products. About 86% of these are flanges, 1% are pipe fittings. 

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

There are 2,885 high neck flange suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 98%, 1%, and 1% of high neck flange respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 2,229 with ISO9001, 400 with Other, and 39 with OHSAS18001 certification.