0:00/0:12
倍速
  • x2
  • x1
  • x0.5
举报

Metallurgy. Steel converter filler material. metallurgy metal industry metallurgical industry metal production. Melting metal steesmelting iron and processing Ferroalloys processing plant

视  频 ID:  1025330681
版      权:  Oleg Kozytskyi
视频长度:  0:12
横纵比率:  16:9
所属分类:  建筑 工业 
商业用途

如何选择