Beijing, June 9 (Youth.cn) - On June 7, 2025, in Baoji, Shaanxi, the Changleyuan Anti-Japanese War Industrial Heritage Park stands in peace. During WWII, as industries relocated inland, Baoji Shenxin Cotton Mill began excavating cave workshops here in 1940. By 1941, the 24-cave factory became operational, supplying cotton yarn to China’s northwestern warfront. Photo/CFP