Ala viscosity dị ala, iguzogide mgbawa, ihe eji arụ ọrụ dị mma, nguzogide okpomọkụ dị elu
Ngwaahịa ọdabara: ụdị ntụgharị ọkụ, reactors, transformers na ngwaahịa ndị metụtara ya
Usoro ọdabara: nkedo agụụ