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About product and suppliers:
        Alibaba.com offers 8,011 thhn wire products. About 84% of these are electrical wires, 13% are power cables, and 1% are copper wire. 

A wide variety of thhn wire options are available to you, such as insulated, bare. You can also choose from copper, copper clad aluminum. As well as from overhead, underground, and heating. And whether thhn wire is stranded, or solid. 

There are 7,992 thhn wire suppliers, mainly located in Asia. The top supplying countries or regions are China, Philippines, and Ukraine, which supply 99%, 1%, and 1% of thhn wire respectively. 

Thhn wire products are most popular in North America, South America, and South Asia. 

You can ensure product safety by selecting from certified suppliers, including 3,871 with ISO9001, 3,212 with ISO14001, and 3,182 with OHSAS18001 certification.