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About product and suppliers:
        Alibaba.com offers 278,354 coupling products. About 10% of these are pipe fittings, 2% are shaft couplings, and 1% are connectors. 

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

There are 275,851 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 58,070 with ISO9001, 37,703 with Other, and 10,773 with ISO14001 certification.