Yuav ua li cas yuav da dej phuam

Cov phuam da dej yog cov khoom uas cov qhua siv tus kheej. Ib txoj phuam yooj yim thiab siv tau yooj yim ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev da dej.

Feem ntau cov phuam zoo yog mos thiab ci xim.

Qhov thib ob yog qhov kev xav: fluffy kev ntxhib los mos, mos zoo li: hom phuam no ua rau tib neeg muaj kev nplij siab thiab kev lom zem, thiab nws yog elastic hauv tes.

Thaum kawg, lub hydrophilicity: lub chaw da dej muaj qhov xav tau siab heev rau kev siv cov phuam da dej. Cov phuam so yog so thiab dej yog so qhuav.