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Nanjing Kisen Obtained another Invention Patent

      Recently, Nanjing Kisen International Engineering Co., Ltd. obtained another invention patent authorized by State Intellectual Property Office, which is “a material grinding system” with Patent No. ZL 2009 1 003 1996.1.

      This patent is for material pre-grinding vertical mill. With non-gas-separate classifying machine, production is greatly increased and power consumption is reduced for pre-grinding vertical mill, which is a best proposal for modification of cement plant grinding system.