Chovala chachipatala ndi chophimba pabala, mankhwala omwe amagwiritsidwa ntchito kuphimba zilonda, zilonda, kapena kuvulala kwina. Pali mitundu yambiri yamavalidwe azachipatala, kuphatikiza zopyapyala zachilengedwe, mavalidwe opangidwa ndi ulusi, mavalidwe a polymeric membrane, mavalidwe a thovu a polymeric, mavalidwe a hydrocolloid, kavalidwe ka alginate ...
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