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About product and suppliers:
        Alibaba.com offers 1,012 gem detector products. About 84% of these are industrial metal detectors, 4% are jewelry tools & equipment. 

A wide variety of gem detector options are available to you, such as paid samples. 

There are 1,020 gem detector suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Thailand, and India, which supply 98%, 1%, and 1% of gem detector respectively. 

Gem detector products are most popular in Western Europe, Africa, and North America. 

You can ensure product safety by selecting from certified suppliers, including 172 with ISO9001, 120 with Other, and 21 with OHSAS18001 certification.
        
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