Enwere ọtụtụ aha maka rivets kpuru ìsì na-enweghị isi, dị ka: mgbanaka countersunk isi nke nwere akụkụ abụọ, rivets enweghị isi, kpuru ìsì, na rivets nwere ọnụ abụọ.
https://www.yukerivet.com/news/do-countersunk-head-rivets-require-countersunk-holes/
Oge nzipu: Ọktoba 19-2022