Galatasaray's Didier Drogba (R) challenges Real Madrid's Sergio Ramos during their Champions League Group B soccer match at Turk Telekom Arena in Istanbul Sept 17, 2013. [Photo/Agencies]
Geng Jiasheng, 54, a national master technician in the manufacturing industry, is busy working on improvements for a new removable environmental protection toilet, a project he has been devoted to since last year.