Qhov txawv ntawm countersunk head blind rivets thiab round head blind rivets yog dab tsi?

Cov rivets dig muag uas muaj lub taub hau puag ncig tsis tas yuav chamfering, lawv yuav tawm ntawm qhov chaw tom qab riveting, thaum cov rivets dig muag uas muaj lub taub hau countersunk yuav tsum tau chamfered los ntawm 120 °, thiab lawv yuav nyob rau tib lub dav hlau li lub phaj tom qab riveting.