 Ọ na-eji maka na ọkụ ke eferife dị ka obere na-ajụ-sized námá, agbata, blocks, na-eje ije nokporo ámá, nogige ntụrụndụ, wdg Ihe na Njirimara: aluminum alloy kpụrụ oriọna ahu, si mgbochi corrosive electrostatic spraying. 