Abstract From July 7th to 9th, Henan Provincial Department of Human Resources and Social Security held a senior training course on superhard materials and products technology at Xuchang College. The province is engaged in senior professional technicians and managers in the field of superhard materials and products. A total of 50 people participated in the training, among which...
From July 7th to 9th, the Henan Provincial Department of Human Resources and Social Security held a high-level seminar on superhard materials and products technology at Xuchang College. The province is engaged in senior professional technicians and management personnel in the field of superhard materials and products. 50 people participated in the training, of which Huanghe Cyclone participated in 24 people. 

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