Kev sib xyaw ntawm Sand Belt

Sandbelt yog cov cuab yeej siv los ntawm kev sib txuas cov khoom sib txuas mus rau cov ntaub ntawv hloov tau yooj yim xws li ntawv thiab daim ntaub siv cov ntawv khi, uas tuaj yeem siv rau kev sib tsoo thiab polishing. Nws yog ib daim ntawv tseem ceeb ntawm coated abrasive cuab yeej. Nws cov khoom tseem ceeb yog: substrate, abrasive, thiab binder, sib sau ua ke hu ua peb lub ntsiab ntawm cov xuab zeb siv.