Laser Txiav Yas PET Yob Rau Daim Ntawv

Qhov no yog lub tshuab laser CO2 uas tau kho kom haum rau koj nrog lub taub hau galvanometer. Dov mus rau daim ntawv ua tiav. Siv rau kev txiav cov khoom siv uas tsis yog hlau xws li yas PET.