Tau kho qhov muag

Cov khoom ntsuas kho qhov muag los ntawm OPTO-EDU mas suav nrog txhua yam tsom iav, tsom iav, tsom iav raj, refractormeter, polarimeter, kuaj qhov nyuaj, txhua yam ua nyob rau hauv Suav teb, nrog cov khoom zoo & cov nqi sib tw Hoobkas! Nrog tshaj 1500+ lub qauv tsom iav, peb tau ntseeg siab los muab peb cov neeg siv cov qauv tsim nyog ntawm cov nqi sib tw.