Ibi bikoresho bikoreshwa cyane mugukoresha nabi amasahani zitandukanye (cyane cyane isahani ya alumini).
Nta mpamvu yo kwinjizamo, impeta yo guswera irashobora guhuzwa na crane.
Ntibikenewe kubisobanuro byose bigenzura, ntibikenewe imbaraga zose zo hanze.
Wishingikirize kandi uhangayitse urunigi kugirango ugenzure ibisekuru bya vacuum no kurekura.
Kubera ko bidakenewe insinga zo hanze cyangwa imiyoboro yo mu kirere, ntihazabaho imitekerereze, bityo umutekano ni mwinshi cyane.