4 Steps Dry Grinding Discs For Concrete Floor 80mm

1, 4 steps for concrete floor grinding. 

2, Size: thickness 15mm. diameter 3 inch.

3, Four steps: K1-->K2-->K3-->K光 , step by step to grind.

4, K1 coarse grinding,  K2 fine grinding,  K3 fine polishing,  K光 mirror finish

5, It is used for 6 heads/12heads/24heads and so on floor grinding machine