... 200m Abrasive Roll: Special mineral coated on a film backing. It is suitable for automobile refinishing, stainless steel ... coated aluminium oxide corundum.The difference between it and other conventional coating is, conventional ... good and strong, so sand falling will never happen and this strengthens the life ... 80#, 100#, 120#, so the sanding will be faster, stronger, and more wear-resistant, ...