Ama-rivets ayizimpumputhe ekhanda eliyindilinga awadingi i-chamfering, azophuma phezulu ngemuva kokugoqa, kuyilapho ama-rivets angama-countersunk amakhanda ayimpumputhe kufanele ahlaselwe ngu-120 °, futhi azoba endizeni efanayo nepuleti ngemuva kokuqhuma.
Isikhathi sokuthumela: Mar-31-2022