1. Yuav siv tau ob qho tib si ntub thiab qhuav.
2. Yooj yim rau qhov chaw ua haujlwm tsis muaj dej.
3. Cov khoom lag luam zoo siab pob zeb diamond hmoov sib xyaw nrog cov ntawv cog lus, ua haujlwm siab thiab ua haujlwm ntev.
4. Spacer backed nrog nylon ntaub, muaj peev xwm ua tau raws li qhov sib txawv ntawm kev siv tes grinder, pem teb refinishing tshuab, ceramic polishing tshuab.
