Huang Shuigen's assistant Huang Juyuan works on a prosthesis in Nanchang, east China's Jiangxi Province, Aug. 8, 2019. Huang Shuigen has been working as a prosthesis technician since 2002. Over the years, Huang has helped hundreds of disabled people. "Helping disabled people to stand up and become self reliant, these are my strongest motivations," he said. (Xinhua/Zhang Duan)