Water treatment equipment. Dirty water filtration outside. Biological purification in a pond

Frame Rate: 50, Resolution: 1920x1080, Video Encoding: H.264, File Size: 209.41MB, Number of Clips: 1, Total Clip(s) Length: 00:15

Water treatment equipment. Dirty water filtration outside. Biological purification in a pond. Dirty water infiltration into the pond

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