Bottom View of Workers in Protective Uniform and Safety Masks Welding Steel Structures and

Alpha Channel: No, Looped Video: No, Frame Rate: 25, Resolution: 3840x2160, Video Encoding: H.264, File Size: 27.02mb, Number of Clips: 1, Total Clip(s) Length: 0:05, Source Audio: No

Bottom view of workers in protective uniform and safety masks welding steel structures and components for train car. working process at subway car production factory

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