Glossary

Main produc ts series:
(1)CR-39 index: 1.499 1.56 1.61 .including :hard-multi coated .Spheric and cylinder .cross cylinder so on.
(2)1.499flat-top.bifocal.round-topbifocal.lenticular.progressive lense .UV400 so on.
3?Index 1.499 .1.56 .semi-finished lense.

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