Chang Hua ika ngwakọ stepper moto, Chang Hua ika ngwakọ stepper moto, na ojiji nke elu-edu oyi-akpọrepu ígwè mpempe akwụkwọ na elu okpomọkụ na-adịgide adịgide magnet n'ichepụta, ngwaahịa nkọwa ekpuchi nso nke 25-130.
