Polishing kev kho ntawm cov ntawv xuab zeb

Hauv kev kho polishing, nplua-grained sandpaper feem ntau yog siv vim nws tuaj yeem polish ntau dua, ua rau saum npoo smoother. Feem ntau, cov ntawv xuab zeb nrog cov lus qhia tshwj xeeb xws li 800 mesh, 1000 mesh, 1200 mesh, 1500 mesh, thiab 2000 mesh tuaj yeem xaiv rau kev kho polishing, nrog 2000 mesh sandpaper yog thinnest.

Thaum xaiv polishing sandpaper, nws yuav tsum tau txiav txim siab raws li qhov xwm txheej tshwj xeeb. Piv txwv li, yog tias qhov chaw yog qhov ntxhib, nws tuaj yeem polished nrog cov ntawv xuab zeb ua ntej, thiab tom qab ntawd polished nrog cov ntawv xuab zeb zoo; Yog hais tias qhov saum npoo yog du, cov ntawv xuab zeb zoo tuaj yeem siv ncaj qha rau kev kho polishing.