1. Cov hauv qab yog hollow vim hydrolysis nyob rau hauv ib puag ncig alkaline;
2. Lub pob zeb dag yog nyem hollowhlau saw tshuabvim tsis tso cov seams txaus los yog siv cov nplaum nplaum nplaum los sau cov seams.
Qhov tseeb, muaj lwm qhov laj thawj rau lub nruas khoob, uas yooj yim saib tsis tau. Hauv qab ntawm lub pob zeb yog ib txheej nyias ntawm cov nplaum, uas yooj yim rau tawg. Hauv qab txheej txheej yog xoob cement mortar, uas yooj yim rau disperse. Zoo lichaw txua txiag zeb mining tshuabtxoj kev tso no, lub zog hnyav hauv zos thiab kev co tuaj yeem ua rau hollowing. Peb cov neeg ua haujlwm saib xyuas pob zeb tsis muaj txoj hauv kev rau sab laug thiab sab xis, thiab tsuas yog sim zam qee qhov kev ua haujlwm uas tuaj yeem ua rau hollow.round edging tshuabthaum laus.
Cov txheej txheem tshwj xeeb yog raws li hauv qab no:
Tom qab cov pob zeb ua pob zeb ua tiav, nws yuav tsum tau khaws cia rau 48 teev ua ntej nws tuaj yeem siv los ntawm tib neeg. Tom qab ib nrab ib hlis, hnyavbush rauj tshuabcov khoom tuaj yeem rub thiab polished raupob zeb flaming tshuabkev tsim kho.
