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coal mining equipment of 1800s in norway

coal mining equipment of 1800s miningequipment coal mining equipment of 1800s Prior to the mid1800s miners secured candles to their caps or the rocky walls of the mine using a clump of clay Sometime in the 1860s however Comstock area miners invented the miners candlestick by bending the end of a spike to hold the candle 78... 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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