一种明显改进金刚石锯片整体性能的新型多层刀头,由河南省星火技术研究所和郑州市飞达超硬刀具厂联合研制成功,1991年12月通过河南省科委主持的科技成果鉴定,专家评价居国内领先水平。在“七五”全国星火 A new type of multi-layer cutter head that significantly improves the overall performance of diamond saw blades was jointly developed by the Xinghuo Technology Research Institute of Henan Province and Feida Superhard Tool Factory of Zhengzhou City. In December 1991, it passed the scientific and technological achievements appraisal chaired by the Henan Provincial Committee of Science and Technology. , expert evaluation ranks the leading domestic level. National Spark in the “Seventh Five-Year”