Lub luag haujlwm ntawm cov ntawv xuab zeb yog dab tsi?

Sandpaper yog ib hom kev sib tsoo khoom siv los txhuam cov xim, putty, thiab lwm yam ntawm cov hlau, ntoo, yas, thiab lwm yam. Muaj ob hom ntawv xuab zeb, cov ntawv xuab zeb qhuav thiab cov ntawv xuab zeb dej, uas yog tsim los ntawm cov ntoo uas tsis muaj sulfuric acid. Cov ntawv yog muaj zog, hnav-resistant, thiab muaj dej tsis kam. Cov khoom sib tsoo yog adhered rau thawj daim ntawv nrog adhesives xws li cov pos hniav, thiab qhuav kom nws