The use of a temperature gun is with the spread of COVID-19 in 2020, fever is one of the symptoms. At this time, the control of temperature has become one of the testing standards, and it is necessary to test the temperature in public places such as shopping malls and stations in China. Temperature guns are also in large demand. Our factory used to do injection molding of auto parts, household appliances, medical equipment, and building electrical equipment. In 2020 last year, we put into production injection molding of temperature gun shells and received a large number of orders from the market. . At present, mass production of our molds is very mature.