Crusher - Wikipedia. A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials (as in rock ore), so that pieces of different...
ويك تأثير محطم 36, Crusher - RitchieWiki. Nov 19, 2009 . Neither device was developed enough to have an impact on the crushing industry. Although he never developed a line of manufactured crushers, Thomas Edison helped develop a primary crusher when he was trying to reduce magnetic iron ore. He discovered that crushing rocks would ...
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