Nke a dabere na nsonaazụ ikpeazụ anyị nwetara na ngwaahịa ahụ.Mgbe agbachara isi gburugburu, a ga-enwe isi gburugburu n'elu.Mgbe a dọpụchara stud isi countersunk, enwere ike idobe elu ya dị larịị, mana ebe a na-eme ya bụ na a ga-agbapụta countersink.Obere nsogbu, ọ nwere ike idobe ngwaahịa ahụ mara mma, ọ naghị emetụta njikọ nke workpieces ndị ọzọ n'otu ụgbọ elu ahụ.
Oge nzipu: Mar-31-2022