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Northeast China's petrochemical industry upgraded

chinadaily.com.cn | Updated: 2024-08-12 13:14
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Eco-friendly fibers and high-end industrial yarns are displayed at Hengli Group's petrochemical industrial park in Dalian Changxing Island Economic and Technological Development Zone, in Dalian, Liaoning province, June 16, 2024. [Photo/Xinhua]
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