Hydroxyethyl cellulose selubricant Hydroxyethyl cellulose (HEC) i polymer inonyungudika nemvura iyo inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana, kusanganisira emishonga, chikafu, uye zvizorwa. Muindasitiri yemishonga, HEC inowanzoshandiswa semafuta ekugadzira mapiritsi, sezvo inogona kuvandudza f...
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