Isahani idafite ibyuma
Isahani idafite ibyuma isa neza, plastike ndende, ubukana nimbaraga za mashini, aside, gaze ya alkaline, igisubizo nibindi birwanya ruswa.Nicyuma kivanze kitangirika byoroshye, ariko ntabwo rwose.Isahani idafite ibyuma bivuga kwangirika kwangirika kwintege nke nkikirere, icyuma cyamazi nicyuma cyamazi, hamwe nicyuma cyangiza aside bivuga kwangirika kwangirika kwimiti ikoreshwa nka acide, alkali, icyuma cyumunyu.Isahani idafite ibyuma kuva mu ntangiriro z'ikinyejana cya 20, ifite amateka y'ibinyejana birenga 1.
