※ polishing agent yuav muab faib ua
① coarse polishing agent: muaj cov khoom me, muaj peev xwm tshem qhov tob ntawm oxide txheej thiab me ntsis khawb thiab pleev xim pitting thiab lwm yam.
② Polishing tus neeg sawv cev: thinner dua qhov cov khoom ua tau tawm tau tawm ntawm cov xim me me.
③ txo tus neeg sawv cev: ultrafine, nce qhov ci ntsa iab ntawm cov xim, rov qab los ntawm cov xim ntawm cov xim.
Lus Cim: Tsis txhob xav tias qhov loj dua qhov sib txuam, qhov muaj zog lub peev xwm ntawm abrasive, lub Japanese abrasive vim hais tias ntawm high school alumina muaj pes tsawg leeg, ua rau abrasive ultrafine, tab sis lub peev xwm khawb yog heev zog.