(250520) -- SHANGHAI, May 20, 2025 (Xinhua) -- A technician works at the electrolyzer test area of a hydrogen technology company in Shanghai, east China, April 24, 2025. Taking manufacturing as the city's important support for core competitiveness, Shanghai is now vigorously developing advanced manufacturing industry, including heavy machinery manufacturing, intelligent manufacturing, clean energy manufacturing, intelligent robot and so on, in both the old industrial park of Minhang District and the Lingang new area of the China (Shanghai) Pilot Free Trade Zone, Through efforts of these years, Shanghai has cultivated a number of high-end industrial clusters, pioneered in a series of innovations, and made breakthroughs in developing some high-tech products. The quality competitiveness index of Shanghai's manufacturing industry has ranked first in the country for consecutive 15 years. (Xinhua/Lu Peng)