Rau me me npua Hoobkas thiab pub ua cov nroj tsuag, nyob rau hauv zus tau tej cov pub nyob rau hauv no hais txog yuav tsum tau siv uas pub ua chav tsev nws, ua ntej ntawm tag nrho cov, pub pellet zeb khoom yog ib tug tsim nyog pub machinery nyob rau hauv cov khoom yug me nyuam.
Pub tov khoom: cov cuab yeej muab faib ua ntsug tov khoom thiab kab rov tav tov khoom ob yam. Cov neeg siv khoom me me dav dav yuav xaiv cov khoom sib tov ntsug, cov khoom siv yog qhov sib xyaw ua ke, lub zog siv me me. Pub zeb: cov cuab yeej no yog lub tshuab tseem ceeb hauv cov khoom siv pub khoom noj, kev tsim khoom hauv tsev ntawm lub ntsiab rauj zeb. Cov txheej txheem pub khoom noj saum toj no tsuas yog txwv rau kev siv, qhov tshwj xeeb yuav tsum tau cia cov chaw tsim khoom cov neeg ua haujlwm tshaj lij los muab cov txheej txheem ua tiav raws li tus neeg siv khoom tus kheej qhov xwm txheej.
