Cov txheej txheem ntim thiab lo txheej yuav siv tau lub tsho loj thiab cov tsis yog nqaij. Hauv cov txheej txheem no, cov khoom xyaw qhuav thiab / lossis cov khoom siv ntub tau siv rau qhov chaw ntub dej ntawm qhov tsis huv lossis kho (moisturized) cov nqaij. Qhov tseeb adhesion yog qhov nyuaj rau lub processor vim nws nyob ntawm t ...
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