Peb tuaj yeem ua tau yooj yim feem ntau ua tiav peb cov neeg siv khoom hwm nrog peb cov khoom zoo tshaj plaws, tus nqi zoo heev thiab kev txhawb nqa zoo heev vim peb tau muaj cov kws tshaj lij thiab ua haujlwm ntau dua thiab ua haujlwm tau zoo rau Gasket,
Ptfe Filament Ntim,
Dusted Asbestos xov paj,
Dusted Asbestos xov paj, Tsuas yog ua kom tiav cov khoom zoo kom tau raws li cov neeg siv khoom xav tau, tag nrho peb cov khoom tau raug tshuaj xyuas nruj me ntsis ua ntej xa khoom.
