Tuam Tshoj nres valve cov lus qhia: Yuav ua li cas kom Tuam Tshoj nres valve nyob rau hauv zoo
CovSuav ntiaj teb valve yog ib qho khoom siv tswj cov kua dej uas nquag siv, thiab nws cov kev saib xyuas yog qhov tseem ceeb rau kev tswj xyuas qhov zoo. Tsab ntawv xov xwm no yuav muab rau koj qee cov lus qhia txog Suav ntiaj teb valve txij nkawm los ntawm kev pom zoo los pab koj tswj xyuas qhov zoo ntawm Suav ntiaj teb valve.