Comparatively regular cryst-al shap, high strength, belonging to middle grade but contain more regular cr-ystal shape.Suitable for gr-inding and free-cutting too-ls, grinding wheels which work with medium load.

• 晶形较规则,机械强度较高,是中等品级含较高比例完整晶形的金刚石。使用于磨削工具、自由切割工具、磨轮等中等负荷切割。