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About product and suppliers:
        Alibaba.com offers 113,691 brass union products. About 11% of these are pipe fittings. 

A wide variety of brass union options are available to you, such as nipple, cap, and union. You can also choose from copper, pp-r, and stainless steel. As well as from female, male, and welding. And whether brass union is forged, or casting. 

There are 113,482 brass union suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 99%, 1%, and 1% of brass union respectively. 

Brass union products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 17,517 with ISO9001, 8,360 with Other, and 3,477 with ISO14001 certification.