NOTICE:
On the morning of January 23, an expert from the Anhui National Mine Product Safety Mark Center Inspection Institute, Liu Dejun (Fushun Institute), Li Guang (Changsha Institute) and Yang Jianxin (Beij
On the morning of January 20, the national MA Coal Safety Certification Expert Group and his entourage came to Shandong China Coal Group to conduct on-site certification on series of mining equipment
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