These drones carry up to 200kg to clean the outside of windows. 🤔 4,342 views 6 years ago 37 seconds Uploaded by МОТИВАТОР Related videos 9:31 2:33 0:15 4:01 0:12 0:15 2:00 0:12 64:19 10:06 12:51 27:40 22:24 16:18 7:47 27:46 2:15 0:34 0:30 0:09 5:07 6:56 12:55 9:14 3:40 5:56 5:15 6:37 4:41 5:48 5:42 5:58 7:58 5:41 4:20 6:09 1:27 6:37 3:43 6:38 18:36 7:30 10:53 10:13 6:52 2:24 4:07 7:45
