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About product and suppliers:
        Alibaba.com offers 8,995 rotary union products. About 29% of these are pipe fittings, 1% are other general mechanical components, and 1% are other machine tools accessories. 

A wide variety of rotary union options are available to you, such as copper, stainless steel, and alloy. You can also choose from union, bushing, and coupling. As well as from male, female, and welding. And whether rotary union is reducing, or equal. 

There are 8,952 rotary union suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Hong Kong, and South Korea, which supply 96%, 1%, and 1% of rotary union respectively. 

Rotary union products are most popular in Southeast Asia, North America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 2,527 with ISO9001, 344 with Other, and 156 with ISO14001 certification.