a) Ikirere, ubwubatsi, ibinyabiziga, imiti, ibifunga, ibikoresho bya elegitoroniki, gutunganya ibiryo, ibice by'itanura & ibikoresho, ibyuma, imitako, ibidukikije bidafite ubushyuhe buke, ibidukikije byo mu nyanja n’inyanja, ibikoresho byo mu biro, imiti, gusudira, hamwe no gukora impapuro.

b) Ifu yicyuma idafite umwanda itanga imbaraga zo kurwanya ruswa, kurangiza hejuru, kwambara birwanya, gukora imashini, kurwanya okiside, gukuraho isahani, imbaraga zubushyuhe bwo hejuru, hamwe na coefficient yo kwaguka.

c) Ibice byatewe inshinge.