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About product and suppliers:
        Alibaba.com offers 189 gem mining machine products. About 32% of these are mineral separator, 12% are loose gemstone, and 11% are crusher. 

A wide variety of gem mining machine options are available to you, such as gravity separator, flotation separator, and jaw crusher. 

There are 189 gem mining machine suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of gem mining machine respectively. 

Gem mining machine products are most popular in Domestic Market, Africa, and South America. 

You can ensure product safety by selecting from certified suppliers, including 87 with Other, 84 with ISO9001 certification.