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About product and suppliers:
        Alibaba.com offers 7,799 composition unions products. About 1% of these are pipe fittings, 1% are men's t-shirts. 

A wide variety of composition unions options are available to you, such as union, elbow, and coupling. You can also choose from stainless steel, plastic, and pp-r. As well as from female, male, and welding. And whether composition unions is equal, or reducing. 

There are 7,809 composition unions suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Pakistan, and India, which supply 98%, 1%, and 1% of composition unions respectively. 

Composition unions products are most popular in Mid East, North America, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 1,383 with Other, 1,326 with ISO9001, and 318 with ISO14001 certification.