Olu ịgbado ọkụ

Butt ịgbado ọkụ flange bụ ụdị ọkpọkọ kwesịrị ekwesị, nke na-ezo aka a flange na a olu na a okirikiri mgbada ọkpọkọ, na jikọọ na ọkpọkọ site butt ịgbado ọkụ.