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About product and suppliers:
        Alibaba.com offers 286 copper neck flange products. About 46% of these are flanges, 2% are pipe fittings. 

A wide variety of copper 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 free samples. 

There are 286 copper neck flange suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of copper neck flange respectively. 

Copper neck flange products are most popular in North America, South America, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 86 with ISO9001, 39 with Other, and 11 with ISO14001 certification.