Tha mòran ainmean ann airson seamannan dall gun cheann, leithid: seamannan cinn le dà thaobh air an cuir fodha, seamannan gun chridhe, seamannan dall, agus seamannan le beul dùbailte.
https://www.yukerivet.com/news/do-countersunk-head-rivets-require-countersunk-holes/
Ùine puist: Dàmhair 19-2022