| Alamar kasuwanci | Ƙayyadewa | Kayan Aiki | Mai dacewa |
| OTIS | Hanyar haɗi ta 17/ hanyar haɗi ta 19 | Nailan | escalator na Otis |
Ana yin sarƙoƙin juyawa na escalator da kayan ƙarfe masu ƙarfi don tabbatar da dorewarsu da amincinsu. An ƙera sarƙar juyawa don jure matsin lamba da kaya mai yawa yayin aikin escalator, don haka dole ne a riƙa kulawa da shi akai-akai don tabbatar da aiki lafiya.