Xov Xwm Tuam Txhab
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Kev Kho thiab Kev Siv Cov Lens Resin
1. Thaum tsis hnav tsom iav, lawv yuav tsum muab tso rau hauv lub thawv iav.Tsis txhob kov lub ntsej muag sab nrauv (sab nrauv) ntawm lub lens nrog cov khoom tawv.2. Yaug nrog dej kais dej ua ntej so lub lens.Yog tias muaj roj, ntxuav cov tshuaj ntxuav tais diav thiab yaug nrog dej, ces siv ...Nyeem ntxiv -
Cov qauv tsim ntawm Plexiglass Lenses
1. Lub plexiglass yog ua los ntawm polymethyl methacrylate, thiab cov polymethyl methacrylate muaj ib tug polar side methyl pawg, uas muaj zog hygroscopic khoom.Cov dej nqus dej feem ntau yuav tsum tau ua kom qhuav ntawm daim ntawv acrylic, thiab qhov xwm txheej yuav tsum tau ziab yog 78. Qhuav ntawm ° C-80 ...Nyeem ntxiv