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About product and suppliers:
        Alibaba.com offers 64,202 copper screw products. About 15% of these are screws. 

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

There are 64,071 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 32,211 with ISO9001, 8,961 with ISO14001, and 6,382 with Other certification.