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Mineral Stones Crumbling Down From Water Pressure Extracting Gold Metal. Water Washing Mineral Stones From Dirt. Mineral Stones Cleaned By Water Stream. Mining Industry. Mud. Wet Rocks

视  频 ID:  1093629891
版      权:  U360
视频长度:  0:07
横纵比率:  16:9
所属分类:  科技 工业 
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