Lensmeter Can add one polishing wheel or exehange the CR wheel to PC wheel to proceed PC lenses. LensmeterGrinding wheel diameter: 150mmThe range of lenses diameter: φ20~φ80mmLens material: Optical lens, CR-39, PCGrinding type: bevel edge, without frameWorking temperature: 5°C~40°CElectrical source: 220V, 50HzCurrent control: 220V, 2 fuses; Melt current: 10A Size: 212mm (L)×158mm (W)×58mm (H) ...