Kukho iintlobo ezininzi zezixhobo zeglasi kunye neelensi, ezifana ne-CR39, i-PC (i-polycarbonate), i-1.53 Trivex156, iplastiki ye-medium refractive index, iglasi, njl. Kwiilensi zokulungisa, ukuhanjiswa kweelensi ze-resin kunye neglasi kumalunga ne-91% kuphela, kwaye ukukhanya okunye kubonakaliswa zizinto ezimbini...
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