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Liquid Molten Metal Flows From Industrial Metalworking Crucible. Liquid Molten Metal Glowing With High Temperature. Liquid Molten Steel Material. Refining Metal Scrap. Manufacturing Factory

视  频 ID：  1105094573
版      权：  A. Leon
视频长度：  0:49
横纵比率：  16:9
所属分类：  科技 工业 
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