1. Ko te taapiri i te methylcellulose ki te ciment ka whai paanga nui ki ona ahuatanga miihini. Ko te Methylcellulose he pärönaki cellulose e whakamahia nuitia ana hei whakakaha, hei whakapumau, hei pupuri wai i roto i nga momo ahumahi, tae atu ki te hanga. Ina tapirihia ki nga ranunga cimentitious, methylc...
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