CNC ịcha laser Ịmepụta Nrụgide nrụgide Na-ehulata Nkuku pịara enweghị nkebi ịgbado ọkụ butt Mgbado ọkụ laser akpaaka njikwa mma Nchacha Acid pickling Ọnụ ego ike PU ụfụfụ Kpọkọtanụ Nyocha ikpeazụ Nkwakọ ngwaahịa Mbupu