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Dalian Huanqiu Minerals Co.,Ltd. won the first prize of technical invention category of CNMIA
2019-10-30

On October 28 2019, the 2019 China Non-metallic Mineral Industry Conference and Exhibition Expo was held in Guangzhou. The wollastonite fibers project of Dalian Huanqiu won the first prize of technical invention category of CNMIA.

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