Ua ntej tshaj plaws, thaum peb xaiv cov rivets puag ncig, peb yuav tsum saib cov ntsiab lus ntawm cov qauv rub rivet no kom meej. Cov qauv ntawm cov khoom sib txawv kuj txawv, yog li peb kuj yuav tsum xav txog qhov chaw uas lawv siv. . Feem ntau, cov khoom siv ntawm cov khoom siv tib yam siv. Yog tias koj tsis nkag siab txog hom fastener no thaum koj xaiv rivets, ces koj yuav tsum xaiv raws li cov lus qhia thiab kev siv, kom tsis muaj teeb meem. Paub txog cov khoom, rau txhua qhov kev xav, qhov no kuj tseem ceeb heev rau peb.
Lub sijhawm tshaj tawm: Lub Ib Hlis-29-2021