Hauv North America, cov qhov rooj tua hluav taws tau sim rau ntau yam qauv, nyob ntawm yam khoom. Cov no suav nrog: Ul10B (R2020) siab. NFPA 252 (2017) -Cov lossis nruab nrab ntawm nruab nrab.
Dab tsi yog UL qauv rau cov hluav taws kub?
Nov 14, 2022
Tso lus
Koj Tseem Yuav Zoo Li
