1) Before use, the Chemical Oxygen Self Rescuer must be tested to see if it is normal, otherwise it may cause the user's life to be in danger.

The main function of Chemical Oxygen Self Rescuer is to supply oxygen, which is not used under normal circumstances. Its role is mainly reflected in the occurrence of fire, gas and coal dust explosion

When a variety of fires occur, when a large traffic accident requires rescue; when someone is trapped in a certain place; even when the public lacks water, they will see its red figure. In order to re

Near the Spring Festival, in order to better summarize the experience, the deployment of the 2018 party committees, in the morning of February 8, Shandong Tiandun Party Committee held Party Committee

With the development of modern science, sensing technology has developed rapidly as a new discipline closely related to modern science. It has been widely used in industrial automation measurement and

Airport navigation lighting system is an important reference for aircraft landing and ground taxiing. In recent years, with the advent of LED navigation aids, it is a major improvement in the technolo