Cov ntawv pov thawj

PHEEJ YEEM

PEB TAU TXUJ CI KAWG THIAB TSHEM TAWM KEV KUAJ COV KEV KUAJ, LUB HWJ HUAM TXUJ CI KUJ ZOO TSHUAJ, KUJ CIRCULT TEST, ARC STRIKING TEST, DROP TEST thiab peb MUAJ CE, TUV, LR, DB, ABS, THIAB SO RAU