Ngwaahịa a ọ ga-adị mma ka ọ pụọ ka ọ pụọ n'okirikiri isi gburugburu?

Ọ dịghị mkpa ịkụtu oghere countersunk iji dọpụta rivets na ndị isi gbara gburugburu.

https://www.yukerivet.com/news/do-countersunk-head-rivets-require-countersunk-holes/