Relic restoration experts repair murals in the No 48 cave of Yuanguang Temple at the Xumishan Grottoes in Ningxia on April 27. It's the first repair and recovery project carried out at the 1,500-
As China News reported, the mural restoration and protection project of Xumi Mountain (Xumishan) Grottoes began on April 1, according to the Xumishan Grottoes Cultural
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