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Metal Production Factory. Unique Technology of Walking Beam of Furnace. Copper Bars on Industrial Line. Conveyor belt. Copper Production Line. Non ferrous plant. Metallurgy. Heavy Industry.

视  频 ID:  1095532459
版      权:  A. Leon
视频长度:  0:13
横纵比率:  1.90:1
所属分类:  科技 工业 
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