Zhang Qigang, a cultural relic repair technician, shows a rubbing of a piece of relic made by him at Liaoning Provincial Museum in Shenyang, capital of northeast China's Liaoning Province, May 17, 2016. There are a group of cultural relic repair technicians at the heritage conservation center of Liaoning Provincial Museum. Most of the items displayed at the museum have been dealt with by them. (Xinhua/Yang Qing)
