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TongYi Zhang (PhD, Sci. and Tech., Beijing, 1985) ... Tong-Yi Zhang, Sun-Chien Ko and Sanboh Lee, Effects of Absorption and ...
Tongyi Optical ... CR-39 lens, spectacle lens, eyewear, plastic lens, finished lens, bifocal lens, sun ...
Tongyi Optical ... CR-39 lens, spectacle lens, eyewear, plastic lens, finished lens, bifocal lens, sun ...
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