NOTICE:
From October 28th to 29th, experts from the CCC Compulsory Product Certification Expert Group Hou Yandong and Zhang Weibin visited China Coal Group to conduct 3C certification on-site review of explos
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
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
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