development of devices South Korea

... attached to the elevator cable, and operates on the principle of automatically stopping the elevator by detecting when the cable moves at a rapid speed. This is controlled by a control device installed inside the elevator, which stops the elevator and opens the door to allow passengers to escape. Donggwang Sau provides safe and reliable elevator emergency stop devices using the latest technology and equipment, contributing to the safety and development of the elevator industry.

... better serve our users have driven the development and supply of higher-end and specialty optical glasses, optical communication cable systems. We have optimized VAD Process to develop and commercialize high quality synthetic fused silica. Through high optimization of the process, we have achieved extremely high purity, low-OH content, and low birefringence thus allowing its use in the semiconductor industry. # Website https://www.taihanfiber.com # Video https://www.youtube.com/watch?v=OLr7thNBXds...