Liushi is an enterprise specializing in the production of "CHS" brand plastic products such as nylon strapping, steel nail wire cards, positioning pieces, wire pressing caps, wiring terminals, number tubes, winding tubes, cold pressed terminals, and meter boxes. It is one of the largest professional manufacturers of plastic wiring equipment in China. Over the course of more than 20 years of development, Changhong Plastics Co., Ltd. has bravely climbed the peak of independent innovation, obtained more than 20 national patents, and established a technology research and development center. Through cooperation with foreign companies, the China Plastics Processing Industry Association, the National Plastic Products Standardization Technical Committee, and other units, Changhong Plastics Co., Ltd. is committed to the research and production of technical requirements, test methods, inspection rules and marks, packaging, storage, transportation, and other technical fields of self-locking polyamide (nylon) zip ties, and has achieved fruitful results.

Due to the lack of national and industry standards for "polyamide (nylon) zip ties" in China, in order to regulate corporate behavior, ensure product quality and safety, promote industrial structure adjustment and optimization upgrading of the plastic wiring equipment industry, Changhong Plastics Co., Ltd. applied to the Ministry of Industry and Information Technology of China in 2010 to develop the industry standard for "self-locking polyamide (nylon) zip ties". Recently, it was approved by the Ministry of Industry and Information Technology of China and passed the public notice.

As the main drafter of industry standards, Zheng Yuanhe, the person in charge of Changhong Plastics Co., Ltd., feels a great responsibility and stated that he will take this as an opportunity to further enhance the company's overall competitiveness and guide the industry towards standardization and standardization.