1. O le a le faʻaoga autu o le hydroxypropyl methylcellulose (HPMC)? ——Tali: O le HPMC e masani ona faʻaaogaina i mea faufale, paʻu, resini gaosia, keramika, vailaʻau, meaʻai, ie, faʻatoʻaga, mea teuteu, tapaa ma isi pisinisi. E mafai ona vaevaeina HPMC i: fau fale, foo...
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