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About product and suppliers:
        Alibaba.com offers 67,908 pipe union products. About 32% of these are pipe fittings, 1% are bottles, and 1% are packaging boxes. 

A wide variety of pipe union options are available to you, such as stainless steel, iron, and plastic. You can also choose from equal, reducing. As well as from casting, forged. And whether pipe union is hexagon, or square. 

There are 67,580 pipe union suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Hong Kong, which supply 99%, 1%, and 1% of pipe union respectively. 

Pipe union products are most popular in North America, Mid East, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 16,997 with ISO9001, 8,819 with Other, and 2,795 with ISO14001 certification.