Абразивы 
Электрокорунд белый 25А
Фракции:
F 12 = 1400 – 2000 µm
F 14 = 1180 – 1700 µm
F 16 = 1000 – 1400 µm
F 20 = 850 – 1180 µm
F 24 = 600 – 850 µm
F 30 = 500 – 710 µm
F 36 = 425 – 600 µm
F 40 = 355 – 500 µm
F 46 = 300 – 425 µm
F 54 = 250 – 355 µm
F 60 = 212 – 300 µm
F 70 = 180 – 250 µm
F 80 = 150 – 212 µm
F 90 = 125 – 180 µm
F 100 = 106 – 150 µm
F 120 = 90 – 125 µm
F 150 = 63 – 106 µm
F 180 = 53 – 90 µm
F 220 = 45 – 75 µm