Micro-carving master Pan Qihui shows a mini pipa with four strings made of human hairs, on which Pan engraved poems, at his studio in Chongqing, Nov. 16, 2017. (Photo/chinadaily.com.cn)
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Micro-carving master Pan Qihui shows a mini pipa with four strings made of human hairs, on which Pan engraved poems, at his studio in Chongqing, Nov. 16, 2017. (Photo/chinadaily.com.cn)