Zhongyuan Neipei Group Dingrui Technology Co., Ltd. is a holding subsidiary of Zhongyuan Neipei Group Co., Ltd. It is a national high-tech enterprise with independent design, research and development, production, sales, and technical service capabilities. The company is mainly engaged in the design, research and development, and manufacturing of CNC cutting tools (PCBN cutting tools, PCD cutting tools), honing and sanding strips (diamond sanding strips, CBN sanding strips, resin sanding strips), honing and grinding heads, countersunks, CNC tool holders, and other tools.