Nkọwa Dị Mkpirikpi:

E ji aluminom a kpụrụ akpụ mee ihe mkpuchi anyị. E ji epoxy na polyester resins nke e tinyere n'ọkụ eletrik mee, nke a na-esi na ya, na-emepụta mpụta siri ike, nke na-adịgide adịgide, nke nwere isi awọ. Akụkụ ndị na-ebu ugbu a bụ ọla kọpa. Emebere njikọ ala iji hụ na njikọ eletriki dị mma site n'ịkpado onye na-eduzi ya n'elu ala siri ike.