CDSR tswj kev xa cov hoses thaum lub sij hawm COVID-19 muaj thoob qhov txhia chaw

CDSR tau tswj kom xa 50 pcs ntawm DN500 * 11800mm ntab hoses rau cov neeg siv khoom txawv teb chaws thaum lub sijhawm COVID-19 kis thoob qhov txhia chaw.