cr-39 flat top bifocal finished 70/28mm hc lens
USD $2.4 - $2.55 /Pair
Min.Order:3000 Pairs
Danyang Kangju Optical Glasses Co., Ltd.
1) Material: Resin(1.499 Flat-Top Bifocal LENS)
2) Refraction Index Nd= 1.499
3) Abbe Value: 58
4) Diameter: 70/28 mm
5) Coating: WHITE, HMC+EMI are available