回国上 escalator前看看，如果是 Shenlong Elevator Ltd小心

"The company lacks adequate training of staff on how to deal with emergency escalator situations, and lacks practice, which led to the escalator not being shut down (before the accident)," it said.

The manufacturer, Shenlong Elevator Ltd, was criticised for the design of its product's metal panels, which investigators said could easily work their way loose.

http://www.bbc.com/news/world-asia-china-33699664