(250707) -- TIANJIN, July 7, 2025 (Xinhua) -- This photo taken on July 4, 2025 shows the laptop production line of the carbon-neutral smart manufacturing factory of Lenovo in north China's Tianjin. In recent years, Tianjin has been committed to building smart factories and accelerating the deep integration of the digital economy with the real economy. As of now, the city has established a total of 400 smart factories and digital workshops, continuously promoting the digital transformation of its manufacturing sector. (Xinhua/Zhao Zishuo)