Izithasiselo eziguquliwe njengezithasiselo zodaka ezixutshwe ngomumo, i-cellulose ether, isilawuli se-coagulation, i-latex powder ephindwe kabusha, i-ejenti yokungenisa umoya, i-ejenti yamandla okuqala, isinciphisi samanzi nezinye izithasiselo eziguquliwe zengezwa ngokwezidingo zephrojekthi, okuthuthukisa kakhulu umculi. ...
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