Otis, an American joint venture company, invested in Otis (Tianjin) in China and Otis (Hangzhou) in Xizi. There are only two Otis elevator companies, among which Tianao has the earliest investment, but it is not absolutely controlled, and Otis, who is learning Chinese characters, is absolutely controlled, so its products are advanced and its policies are superior. The symbol of Tianao is Otis, and Otis is a Chinese character learner.

Otis,

Tianao's annual order volume is about half that of Xizi Otis. Hangzhou Xi 'ao is playing the edge ball of Otis, which is not a level at all. Don't listen to people say that everyone uses Otis technology, the same equipment, everything is the same, and it is cheap. If the shanzhai is the same as the genuine one, the genuine one would have closed down long ago.