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open quarry requires those devices in sweden

Apr 04 2017 · In Sweden some workers are actually volunteering to do just that electing to have a chip the size of a grain of rice implanted in their bodies to help them unlock doors operate printers open ...As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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