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About product and suppliers:
        Alibaba.com offers 10,479 gear ratios products. About 25% of these are speed reducers, 20% are gearboxes, and 19% are dc motor. 

A wide variety of gear ratios options are available to you, such as iron, steel, and stainless steel. You can also choose from free samples, paid samples. 

There are 10,479 gear ratios suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of gear ratios respectively. 

Gear ratios products are most popular in Mid East, North America, and South America. 

You can ensure product safety by selecting from certified suppliers, including 3,315 with ISO9001, 1,135 with Other, and 741 with ISO14001 certification.