dewa css chain & flight type sludge & scum collectors - operation & features Published 6 years ago • 8.3K plays • Length 1:50 Download video MP4 Download video MP3 Similar videos 5:16 rectangular sedimentation tank 11:47 polychem chain & flight collector system 2:56 테크라운_tankchain 비금속슬러지수집기 0:24 chain flight type sludge sand scum collector scraper 1:36 dewa sludge and scum collectors 1:36 dewa chain scraper system