Contact professional maintenance personnel for maintenance. Elevator failure involves passenger safety, so it is necessary to contact professional maintenance personnel for timely maintenance and troubleshooting. Guang Ri Elevator was established in 1956. The first elevator was manufactured in 1973, and it has been nearly 40 years since then. After decades of efforts and development, it has developed into a professional modern national enterprise integrating product research and development, design and manufacturing, installation and maintenance, maintenance and renovation, and engineering training.