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. [Photo/Xinhua]
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