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About product and suppliers:
        Alibaba.com offers 10,456 thread coupling products. About 100% of these are pipe fittings. 

A wide variety of thread coupling options are available to you, such as stainless steel, plastic, and carbon steel. You can also choose from male, female, and welding. As well as from forged, casting. And whether thread coupling is equal, or reducing. 

There are 10,511 thread coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 99%, 1%, and 1% of thread coupling respectively. 

Thread coupling products are most popular in North America, Domestic Market, and South America. 

You can ensure product safety by selecting from certified suppliers, including 4,583 with ISO9001, 1,125 with Other, and 679 with ISO14001 certification.