Yog tias cov khoom yas tsis muaj teeb meem, yuav ua li cas thiaj nrhiav tau cov laj thawj ntawm cov pwm txhaj tshuaj?
Yog tias pom tau tias cov qauv duab ntawm cov khoom yas tsis ruaj tsis khov thiab qhov teeb meem txawv sab nrauv loj dua hauv cov txheej txheem kev txhaj tshuaj molding, nws yuav yog qhov piv txwv ntawm cov kab noj hniav hauv cov pwm me me.Qhov ntev thiab qhov loj ntawm lub qhov ncauj tuag ib feem yog me me.Qhov lub tsho ntev ntawm lub cev los yog lub qhov kub ntawm qhov tuag tsis yog qhov tsis hnav.
Yog hais tias cov nplais ntawm cov khoom yog yellowed thiab muaj ntau lub tsho coke, nthuav lub kaum sab xis ntawm diverging cone nyob rau hauv mould tej zaum yuav loj, ua rau cov khoom siv tsis txaus siab.Tej zaum yuav yog thaj tsam stagflation nyob rau hauv cov khoom pwm khoom khiav kab kab noj hniav , thiab cov khoom txaus yog tsis du.Yog ib lub teb chaws txawv hauv lub lumen ntawm cov channel.
Yog hais tias qhov ntev ntawm daim nplaim ntawm qhov khoom tsis cuam tshuam, txawv teb chaws teeb meem yuav raug daig nyob rau hauv ib feem ntawm cov kab noj hniav, thiab qhov kawg nkaus yuav muaj khij cov cim, burrs los yog qhov loj txhav ntws.