Ob lub thawv roj hmab washer gasket yuav xa tawm sai sai. Qhov no yog cov khoom tsis-txheem. Yog li kos duab uas xav tau. Yog tias koj tseem xav nrog cov khoom lag luam. Thov hu rau peb.
Xa kev nug
Ob lub thawv roj hmab washer gasket yuav xa tawm sai sai. Qhov no yog cov khoom tsis-txheem. Yog li kos duab uas xav tau. Yog tias koj tseem xav nrog cov khoom lag luam. Thov hu rau peb.