China's first adult progressive multifocal lens with international advanced technology; The first progressive multifocal lens for teenagers in China, and won the national patent; The earliest enterprise designated by government departments to prepare glasses for national leaders; China was the first agent to introduce German Zeiss glasses (the largest well-known brand); Maochang Nanjing East Road Head Office is the enterprise with the highest retail sales and the largest amount of glasses in a single store in China. Exclusive introduction of American advanced technology MTI non-invasive eye tester, suitable for children aged 2-6; China took the lead in introducing international advanced optical grinding equipment "AO" and German "LOH" from the United States; The only enterprise with super technicians in China. In particular, the successful trial production of progressive multifocal lenses for teenagers has made Maochang a leading and more professional iconic brand in the glasses industry. Maochang progressive multifocal lens has three functions: slowing down myopia deepening, adjusting glasses fatigue and correcting writing posture, which effectively solves the vision problems of teenagers and has a great influence on teenagers. Some schools even have a class where everyone wears Maochang progressive lenses. This unique invention won the first prize of Huangpu District Science and Technology Progress Award 1998- 1999, the gold medal of the 5th Shanghai Science and Technology Expo, 99 the scientific and technological product that Shanghai teenagers like, and won the national patent in June 2000. These achievements are unique in today's glasses industry.