Tá go leor ainmneacha ar seamanna dalla gan cheann, mar shampla: seamanna ceann cuntar dhá thaobh, seamanna gan chroí, seamanna dalla, agus seamanna le béal dúbailte.
https://www.yukerivet.com/news/do-countersunk-head-rivets-require-countersunk-holes/
Am postála: Oct-19-2022