Micron graded aluminum oxide on a flexible, waterproof film backing. Available in 15, 30 and 35 microns for precision fining CR39, Hi-index and polycarbonate eyeglass lenses.
Micron graded aluminum oxide on a flexible, waterproof film backing. Available in 15, 30 and 35 microns for precision fining CR39, Hi-index and polycarbonate eyeglass lenses.