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About product and suppliers:
        Alibaba.com offers 104,309 black gear products. About 3% of these are spur gears, 1% are bevel gears, and 1% are construction machinery parts. 

A wide variety of black gear options are available to you, such as steel, plastic, and stainless steel. You can also choose from spur, pinion. As well as from nonstandard, standard. And whether black gear is hobbing, precision casting, or forging. 

There are 104,309 black gear suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of black gear respectively. 

Black gear products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 19,632 with ISO9001, 9,686 with Other, and 3,020 with ISO/TS16949 certification.