1. O le a le autu autu o le hydroxypropyl methyl cellulose (HPMC)? HPMC o loʻo faʻaaogaina lautele i mea faufale, paʻu, resini gaosia, keramika, vailaʻau, meaʻai, ie, faʻatoʻaga, mea teuteu, tapaa ma isi pisinisi. E mafai ona vaevaeina HPMC i vasega faufale, vasega mea'ai ma a'u...
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