O le Hydroxypropyl methyl cellulose (HPMC) e faia mai i le cotton faʻamamaina faʻafefeteina, faʻafefeteina i le sodium hydroxide (liquid caustic soda) solution, faʻamalosi i le methyl chloride ma le propylene oxide, ona faʻamautu lea, maua pe a uma ona faʻamamaina, faʻamago, faʻamago ma sieving.Fa'amatalaga Fa'aalia...
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