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About product and suppliers:
        Alibaba.com offers 290,660 coupling products. About 7% of these are pipe fittings, 4% are shaft couplings, and 1% are hydraulic parts. 

A wide variety of coupling options are available to you, such as steel, stainless steel, and plastic. You can also choose from universal, jaw / spider, and disc. As well as from standard, nonstandard. And whether coupling is rigid, or flexible. 

There are 287,678 coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Pakistan, and India, which supply 96%, 1%, and 1% of coupling respectively. 

Coupling products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 50,195 with ISO9001, 31,266 with Other, and 10,066 with ISO14001 certification.