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1, Gutegura imbere, inzira yumusaruro itunganijwe, kugenzura inzira igoye, kwizerwa kandi bihamye

2, Imiterere yihariye yemeza ingaruka za rubber

3, Ikidodo gifatika gikemura ikibazo cyo kumena amavuta

4, Imikorere myiza idashobora gukama amavuta hamwe numwanda muke kumavuta ya transformateur

5, Guhitamo ibikoresho witonze kandi bishushanya neza byerekana neza kashe nziza.