Zhuozhou Changxing New Material Technology Co., Ltd., established in 2001, is an enterprise focusing on the research, development, production and sales of new materials for wire connection and sealing. It is the first enterprise in the world to produce wire connection sealing belt, creating a precedent in the expansion sealing belt industry. Changxing company is a national high-tech enterprise and a scientific and technological small and medium-sized enterprise in Hebei Province, and has won the honorary titles of "Hebei excellent brand". It is also a member unit and director unit of well-known associations such as "China Foundry Association", "China Building Materials Market Association", "China Fire Protection Association" and "Nan'an Fire Equipment Association". At present, the number of operation centers nationwide has reached 300, with operators covering 29 provinces and more than 100 cities. The special sealing tape for foreign trade for overseas markets has also been exported to