Double Holes diamond grinding block With Double 40*10*10mm Segments

1.Diameter is high quality diamond powder, meatl bond

2.Segment size is 40*10*10mm, double segments

3.Bond including super hard, very hard, hard, medium, soft, very soft, super soft

4.Grit can be #16,#30,#50,#80, also accept customized

5.Application is for concrete, marble, granite, terrazzo, limestone grinding and treating