Dab tsi yog iav daim ntawv?

Cov iav ntawv iav, tseem hu ua iav sandpaper, yog ib hom ntawm cov khoom abrasive ua los ntawm iav hais daig rau sab nraum qab ntawm daim ntawv. Feem ntau nws siv tau txhua yam, xws li Woodworking, Hlau Ua Haujlwm, thiab Tsheb Tsheb. Cov ntawv iav yog paub tias ua kom ruaj khov thiab tsis tau txais txhaws los yog muaj cov khib nyiab pawg. Qhov ntawd ua rau cov xuab zeb nyob qis qis thiab tsis poob nws cov kev txiav lub sijhawm raws li lub sijhawm dhau mus. Nws tseem zoo -}}}}}}}} }ness ntawm nws cov abrasive, uas tuaj yeem muab sib xws thiab siab- Cov txiaj ntsig zoo. Nws los nyob rau hauv sib txawv grits thiab yog qhov zoo rau cov haujlwm ntawm cov haujlwm, los ntawm kev coj tawm cov khoom hnyav kom ua tau zoo. Tag nrho cov hauv txhua daim ntawv, cov ntawv iav yog ib qho kev ntseeg tau thiab ua tau cov khoom siv uas tsis muaj kev vam meej uas tau siv dav hauv txhua hom kev lag luam thiab kev siv.