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National Safety Standard Inspection
China Coal Group Successfully On-Site Product Inspection Passed National Safety Standard Inspection Center Experts
Yang Jintao, the director of National Safety Production Changsha Mining Machinery and Electricity Testing and Inspection Center, and Zhao Yunxiao, the expert, visited China Coal Group,
1251 2023-08-19 China Coal News Coal Safety DETAILS
Warm Welcome National Safety Standard Inspection Center Expert Group Visit China Coal Group Site Review
On August 22, National Safety Production Fushun Mining Equipment Testing And Inspection Center Zhang Hongfu, National Safety Production Beijing Mine Support Equipment Testing And Inspection Center Exp