Hydroxyethylcellulose (HEC) i polymer inonyungudika mumvura inoshandiswa zvakanyanya mumaindasitiri akasiyana siyana anosanganisira kuvaka, chikafu, mishonga uye zvigadzirwa zvekuchengeta munhu. Iyo yakasikwa, biodegradable zvinhu zvakatorwa kubva ku cellulose, kabhohaidhiretsi inowanikwa muchirimwa sero madziro. Mumachira ematombo echisikigo, H...
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