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November 22nd afternoon, a Demark machinery company''''s development engineers Guo Lei, quality expert Wang Bo visited China Coal Group for investgating in product procurement, long-term cooperation and
Morning of May 20th ,Yangjie and Sun Fangjie, the director of Gongming Zhenghe Law Firm visited Shandong China Coal Group for legal affairs construction, contract specifications,and commercial risks
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Executive Editor: Zhang Wen / Editor: Linda Zhang