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About product and suppliers:
        Alibaba.com offers 9,214 gear ratios products. About 29% of these are speed reducers, 24% are gearboxes, and 20% 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 9,604 gear ratios suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Japan, which supply 95%, 1%, and 1% of gear ratios respectively. 

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

You can ensure product safety by selecting from certified suppliers, including 3,443 with ISO9001, 1,163 with Other, and 688 with ISO14001 certification.