... Thickness6--600mm 3.Various raw materials 4.Pass ISO9001 1.abrasive tools should be written according to the order, shape, size ... , abrasive material, grain, grade,and speed2.Suitable for the work pieces ... wheeltype 8 taper cup wheel, type 9 dish wheel)Material(A,WA,GC,C,DA,DC,PA,38A) 250*25*32 PA Grinding Wheel