1.56 S/F photochromic progressive, base: 100B/300B/500B/700B.

Manufacturer specializes in producing 1.56 photochromic lenses, 1.499 CR39 optical lens, 1.56 HMC, 1.61 etc.
1.56 PHOTOCHROMIC LENS
1) photo grey/brown single vision, finished and semi-finished
2) photo grey/brown round-top bifocal, finished and semi-finished
3) photo grey/brown flat-top bifocal, finished and semi-finished
4) photo grey/brown invisible bifocal, finished and semi-finished
5) photo grey/brown progressive, finished and semi-finished
1.499 CR39 OPTICAL LENS
1) CR39 single vision, finished and semi-finished
2) CR39 round-top bifoal, finished and semi-finihsed
3) CR39 flat-top bifocal, finished and semi-finished
4) CR39 invisible bifocal, finished and semi-finished
5) CR39 progressive lens, finished and semi-finished