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Leaders Of Rizhao City Visited China Coal Group For Guidance

Market Supervision Administration Leaders Visit China Coal Group Research Guidance

Mexican Businessmen Visit China Coal Group To Purchase Mining Construction Machinery

Concrete was first invented by the British, so it was inferred that the concrete mixer was also invented by the British.You can get more detail evolution process of the concrete mixer from this artic

On February 8, Zhang Jinbao, Director of Talent Work Department of Organization Department (Human Resources Department) of Party Working Committee of Jining High-Tech Development Zone, Ren Qian, Deput

On the afternoon of February 13th, a research group compose of Liu Peng, Deputy Director of Innovation and Entrepreneurship Service Center of Jining High-tech Zone, Zhang Haitao, director of Incubator