Evacuation signs should be made of non-combustible materials, otherwise they should be outside with a protective cover made of glass or other non-combustible transparent materials. Cover. In other words, except for the signs made of aluminum alloy and other non-combustible materials as the base mate

Article 1028 of the "Fire Code for Building Design" stipulates that the evacuation aisles and main evacuation routes of the dance and entertainment venues, underground stores and the ground or the wall near the ground should be set up with luminous evacuation signs. The design of high-rise civil bui

China's deposits of rare earth materials account for more than 80% of the world, and Deng Xiaoping, China's chief designer, once said, "The Middle East has oil, China has rare earths." Rare earth ore is a strategic resource for China. Therefore, nano rare earth materials are the future development direction of our business.

China's deposits of rare earth materials account for more than 80% of the world, and Deng Xiaoping, China's chief designer, once said, "The Middle East has oil, China has rare earths." Rare earth ore is a strategic resource for China. Therefore, nano rare earth materials are the future development direction of our business.