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About product and suppliers:
        Alibaba.com offers 22,515 black sprocket products. About 24% of these are construction machinery parts, 13% are sprockets, and 1% are agriculture machinery parts. 

A wide variety of black sprocket options are available to you, such as steel, plastic, and all plastic. You can also choose from roller chain, leaf chain, and hand tools. As well as from free samples, paid samples. 

There are 22,515 black sprocket suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of black sprocket respectively. 

Black sprocket products are most popular in North America, Mid East, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 4,591 with ISO9001, 3,082 with Other, and 514 with ISO14001 certification.