Hydroxypropyl methyl cellulose (HPMC) e entsoe ka k'hothone e hloekisitsoeng e entsoeng ka pulverized, alkalized ka sodium hydroxide (liquid caustic soda) tharollo, e entsoeng ka methyl chloride le propylene oxide, ebe ha e nke lehlakore, e fumanoang ka mor'a ho sefa, ho omisa, ho silakanya le ho sefa.Litlhaloso li hlaha...
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