DOS imagwiritsidwa ntchito kwambiri m'mafakitale opanga zinthu zotentha chifukwa imakhala yosinthasintha komanso yogwira ntchito bwino kutentha kochepa kuposa PVC ndi ma polima ake, ethyl cellulose, cellulose nitrate, rabara ya chlorinated, ndi rabara ya nitrile.