How about Xizi Otis elevator?

It may be ok before 20 10, after it became Otis electromechanical in recent years. Now Xizi Otis really can't. All kinds of endless small problems emerge one after another. In many laboratories, the parts produced by clappers when the brain is hot have not undergone reliability experiments at all. Many of them are brought out of the womb and there is no way to repair them. Many manufacturers rely on the time of the master who presses the elevator to keep the defective parts alive. Low-end products, such as Thyssen, Xizi Oddis, Schindler and Kone, are really not as good as Shenlong Jiangnan Jiajie Hengda Fuji.

Li Kang, wait. . . China has made rapid progress, Monak's system is also the latest, and Blu-ray is much more advanced than the motherboard design of foreigners.