With the improvement of people's living standards, the development of sea and air transportation, the innovation of medical technology and the chemical industry, the market demand for low-temperature transportation has become increasingly strong, and higher requirements have also been put forward for low-temperature cold storage transportation and storage.

The elevator refractory heat-insulation door is the elevator plus a \"heat-insulating fire door\". If such a fire-resistant insulation door is installed in the elevator hall of the high-rise building, it will be very beneficial to delay the fire through the wellway through the wellway during the fire. It is conducive to the limitations of the trapped person to fire, heat and smoke, and save the life of the trapped person. Therefore, the fire-fired gate door is of great significance for the safety of the person's life and prevents the spread of fire.

The WH Ceramic fiber textile is a major raw material with ceramic fibers. It uses glass fibers or heat-resistant steel as a reinforcing material, and ceramic fibers are spun into yarns, and different textile processes and equipment are used to make different types of products. Cable Cable Fillers can be used in Wih Ceramic fiber or flame retardant glass fiber products for high-temperature insulated wires, cable covers, which can be further facilitated to fire, and play a thermal barrier.

The "Tianwen-1" Mars rover is scheduled to land on Mars and carry out patrol exploration from May to June 2021. Facing the "extremely hot" and "extremely cold" mission conditions, a "nano-aerogel" "The new thermal insulation material will escort the Mars probe. What is the magic of nano aerogel? How to escort "Tianwen No. 1"? What impact will it have on our lives?