How flour is made - material, making, history, used, processing .. methods used for producing flour all involved grinding grain between stones. . fact that his system contained the idea of the integrated and automated factory.grinding of stones in factories,Factory Workers - Products Related & Occupational Asbestos .Sep 7, 2016 . When factory workers used grinding machines, small fragments often broke off when the wheel made contact with another surface.GRINDING WHEEL and ABRASIVES BASICSThis is where we come in: We work with the factories to get you the proper . in with aluminum oxide grit in grinding wheels and honing stones to achieve a.
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