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About product and suppliers:
        Alibaba.com offers 3,172 plug and coupler products. About 15% of these are pipe fittings, 12% are electrical plugs & sockets, and 8% are pneumatic parts. 

A wide variety of plug and coupler options are available to you, such as residential / general-purpose, industrial, and commercial. You can also choose from electrical plug, extension socket, and plug with socket. As well as from standard grounding, non-grounding, and self grounding. And whether plug and coupler is bs, or stripped. 

There are 3,172 plug and coupler suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of plug and coupler respectively. 

Plug and coupler products are most popular in North America, Western Europe, and Eastern Europe. 

You can ensure product safety by selecting from certified suppliers, including 973 with ISO9001, 448 with Other, and 157 with ISO14001 certification.