Kev ua tes ua ntawm cov hlau tsom iav thawv
Cov tawv nqaij siv 0.6-0.8 hli tuab PU, tawv elastic nrog tsawg dua qhov quav thiab qhov chaw zoo nkauj, tawv siv riam txiav pwm ib txwm muaj.
Cov khoom siv nruab nrab yog hlau ntawv, uas yog ua los ntawm tag nrho cov hlau dov los ntawm lub tshuab txiav loj txias kom ua rau cov duab ntawm cov pwm, peb muaj ntau dua 200 hom pwm hauv peb lub Hoobkas, thiab 200 hom khoom loj tuaj yeem xaiv.
Cov khoom siv sab hauv yog daim ntawv yas thiab fluff, qhov tuab ntawm daim ntawv yas yog 0.35-0.4 hli, cov fluff ntawm qhov chaw yog ua tiav rau ntawm daim ntawv yas, uas yog ua rau hauv cov duab ntawm lub thawv tsom iav los ntawm qhov kub siab.
Thaum kawg ib pawg pwm tag nrho yog siv los ua kom tag nrho cov ntaub ntawv sib xyaw ua ke, feem ntau ntawm cov txheej txheem yog ua los ntawm cov kab sib dhos.
Peb qhov kev kuaj xyuas zoo yog nruj heev, ua ntej thiab tom qab 2 zaug kev kuaj xyuas zoo.
Yog tias koj xav tau cov khoom thiab lub Hoobkas, hu rau kuv, peb tus nqi tsim nyog heev.
