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About product and suppliers:
        Alibaba.com offers 639 copper single sleeve products. About 1% of these are insulation materials & elements, 1% are ladies' blouses & tops, and 1% are elbow & knee pads. 

A wide variety of copper single sleeve options are available to you, such as pe, composite polymer. You can also choose from breathable, quick dry, and anti-pilling. As well as from low voltage, high temperature, and high voltage. And whether copper single sleeve is oem service, or in-stock items. 

There are 643 copper single sleeve suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Pakistan, and South Korea, which supply 99%, 1%, and 1% of copper single sleeve respectively. 

Copper single sleeve products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 177 with ISO9001, 95 with Other, and 47 with ISO/TS16949 certification.