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About product and suppliers:
        Alibaba.com offers 1,305 hand crank mechanism products. About 47% of these are music boxes, 5% are office desks, and 3% are car jacks. 

A wide variety of hand crank mechanism options are available to you, such as mechanical jack, scissor jack, and hydraulic jack. You can also choose from free samples, paid samples. 

There are 1,306 hand crank mechanism suppliers, mainly located in Asia. The top supplying countries are China (Mainland), India, and Taiwan, which supply 98%, 1%, and 1% of hand crank mechanism respectively. 

Hand crank mechanism products are most popular in North America, Western Europe, and South America. 

You can ensure product safety by selecting from certified suppliers, including 223 with ISO9001, 105 with Other, and 28 with FSC certification.