Recently, China's Energy and Chemical Labor Union issued a bulletin to inform the collection and evaluation of workers’ technological innovation achievements in 2014. The project “development of hydraulic support with high reliability, large mining height, and high resistance” completed by Ma Mingguo and another 3 participants as well as the project “development of EBZ220 heading machine” by Zhang Dianlong and another 3 participants won the Award of Outstanding Technological Innovation Achievements by Workers in National Energy and Chemical System.
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