Muaj pes tsawg zaus ntawm lub cheeb sab nraud thawj ntawm cov rivets dig muag txhuas?

Kwv yees li 1.5 npaug, tab sis qhov no tsuas yog tus nqi siv xwb, thiab qhov kev hloov pauv ntawm ntau hom txhuas rivets sib txawv.