1. Various shapes 2. More than 300,000 pushing-movement 3. Different materials 4. Purchased by famous elevator brands Elevator buttonShanghai Guotai Elevator Co., Ltd. was founded in 1995, located in Shanghai, China, specializing in elevator manufacture, installation, maintenance, etc. In the past years, Guotai has been accumulating expertise and developing its own technology. Moreover, Guotai ...