... .00b) -0.25 ~ -2.00 / ADD +1.00 ~ +3.00Semi-finished lenses:1) Diameter: 75mm, 70mm2) Normal corridor (17mm), Short ... (14mm)3) Base: 200, 400, 600, 8004) Add: +1.00 ~ +3.00 Introduction of our companyOur company Risee optical ... leybold coating machines.Our prescription lenses:single vision,bifocal lens,progressive lens,polarized lens,photochromic lens,PC lens,free form…To be ready forTomorrow’ ...