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About product and suppliers:
        Alibaba.com offers 64,739 copper screw products. About 13% of these are screws, 11% are machining, and 1% are set screws. 

A wide variety of copper screw options are available to you, such as free samples, paid samples. 

There are 64,611 copper screw suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of copper screw respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 29,759 with ISO9001, 6,900 with ISO14001, and 5,385 with Other certification.