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cov khoom

  • 1.59 Polycarbonate HMC Optical lenses

    1.59 Polycarbonate HMC Optical lenses

    Cov iav resin feem ntau yog cov khoom siv thermal solid, uas yog, cov khoom siv raw yog kua, thiab cov iav khov kho tau tsim tom qab cua sov. Cov iav PC, tseem hu ua "space lenses", "cosmic lenses", hu ua polycarbonate, yog cov khoom siv thermoplastic.

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