Hydroxypropyl methylcellulose (HPMC) i polymer inoshanda zvakasiyana-siyana inowanzoshandiswa mumaindasitiri akasiyana siyana, kusanganisira kuvaka, kwainowana kushandiswa mugypsum grouts. Iyi koniyuta inoita basa rakakosha mukusimudzira mashandiro ekugadzira grout, kubatsira kuvandudza kushanda, kunamatira ...
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