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About product and suppliers:
        Alibaba.com offers 2,680,570 screw manufacture products. About 2% of these are screws, 1% are packaging boxes. 

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

There are 2,680,096 screw manufacture suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of screw manufacture respectively. 

Screw manufacture products are most popular in Domestic Market, North America, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 935,044 with ISO9001, 480,069 with Other, and 181,718 with ISO14001 certification.