Roj Hmab / Silicone Poob Qho Tsis Zoo

Roj hmab shock haum yog txoj kev "laus tshaj" kom nqus poob siab. Qhov laj thawj yog vim li cas nws laus lawm vim tias lub tshuab hluav taws xob tau siv, nws yog thawj cov khoom siv rau hauv cov qauv hluav taws xob nrawm ntawm lub cos. Vim tias roj hmab muaj qhov zoo tshaj plaws elasticity, huab cua tsis kam thiab ua haujlwm nqi ua ntej nws muaj ntau cov ntawv tshiab, nws yog qhov siv ntau tshaj plaws. Yog li tom qab cov kua silicone siv, nws tau siv dav.