Iyindi nzira y'imiti ifise DBD ,SJ103 , umugozi w'ipoliti, carbone, silica, igikoresho co gukingira scorching PVI(CTP) ,guhindura igikoresho DTDM ,DTDC ,HVA-2 , KA9188 ,PK900 n'ibindi kuri .
Niba ufise ivyo ukeneye, ndagusavye ntutinye kuduhamagara .
