Two gold bars from China Construction Bank are displayed at the eighth China-ASEAN Expo in Nanning, capital of Guangxi Zhuang autonomous region, on Oct 23, 2011. [photo by Rong Xiandong/chinadaily.com.cn]
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.