PMMA, tseem hu ua acrylic, yog cov khoom siv feem ntau hauv kev tshaj tawm board. Hauv feem ntau ntawm cov neeg tsim khoom lag luam tshaj tawm cov khw muag khoom, peb feem ntau yuav pom lub laser txiav tshuab siv los ntawm CO2 laser raj.
PMMA, tseem hu ua acrylic, yog cov khoom siv feem ntau hauv kev tshaj tawm board. Hauv feem ntau ntawm cov neeg tsim khoom lag luam tshaj tawm cov khw muag khoom, peb yuav pom ntau lub laser txiav tshuab siv los ntawm CO2 laser raj. Dab tsi yog sawv ntawm ib sab ntawm nws feem ntau yog kev lag luam cua txias. Rau Mr. Wattana uas yog tus tswv ntawm pawg thawj coj saib kev tshaj tawm hauv Thaib teb, ob qho no yog ib khub zoo meej
