Ma rivets akhungu amatchuka chifukwa amakhazikitsa mwachangu komanso mosavuta;amapanga zomangira zolimba zodalirika (ngati mandrel atha, rivet imayikidwa bwino);ali ndi kugwedezeka ndi kugonjetsedwa;ndipo ma rivets ndi chida choyikapo sichiwononga zinthu zomwe zikulumikizidwa.
Kupaka & Kutumiza
