Vim yog qhov xwm txheej ntawm cov roj corrosive reacting nrog steel cylinders, ZX pov tseg txhuas lub tog raj kheej tuaj yeem khaws cov roj gas uas yog txoj kev yooj yim, lub teeb thiab nqa tau yooj yim, Muab cov kev daws teeb meem yooj yim rau cov neeg siv khoom.