Txawm hais tias siv lub tshuab ua polishing puas yog los yog tsis zoo nrog nws lub neej kev ua haujlwm. Nws yog feem ntau pom tau hais tias tib yam khoom siv nyob rau hauv ntau lub Hoobkas tsev. Nws kuj yog qhov txawv txav ntawm qhov kev siv lub tshuab polishing attrition. Kev siv cov cav tov thiab kev tsis siv cov neeg ua haujlwm tsis zoo, lub tshuab yog ntsia ntawm txoj kev tsis muaj tseeb thiab lub hwjchim thiab cov teebmeem, txawm tias tsis muaj cov tswvyim ntawm cov tshuab kev lag luam polishing tshuab yam tsis muaj kev hloov, qhov chaw tsim khoom siv txoj cai tswj kev ruaj ntseg los siv thiab thiaj li raug nrog ntau cov teeb meem.
Polishing tshuab yog feem ntau siv thiab kauj ruam tseem ceeb tshaj hauv cov qauv kuaj hlau. Thaum polishing tshuab yog polishing, qhov ntom ntawm cov qauv yuav tsum yog mus tib seem rau cov ntsia hlau ciav hlau, thiab nws yuav tsum raug nquam nias rau hauv cov discs. Peb yuav tsum xyuam xim kom tiv thaiv tau cov qauv ntawm ya thiab tsim cov cim tshiab vim tias muaj kev nyuab siab heev. Nws yuav tsum tau ua rau lub cev hloov thiab txav mus rau sab nraud ntawm txoj kev taw qhia ntawm qhov tig ntawm, thiaj li tiv thaiv kom tsis txhob siv cov ntaub qhwv ntsej muag hauv lub txheej txheem kom zoo dua tuaj, cov ntaub npuag yuav khaws cov av qeeg. Ntau dhau ntawm kev sib sib zog nqus cov zom ua ke tsis muaj zog, cov qauv nyob hauv theem nyuaj ua rau pom thiab ntim cov hlau npluas hauv pluaj hlau thiab graphite muaj ib qhov "kev sib tw tsav" tshwm sim; hos yog tsawg, vim kev sib txhuam yuav ua rau tus qauv kub, tus nqes tsawg, sib tsoo kom poob lus, thiab txawm me ntsis, lub teeb alloy cov tsos ntawm ntuav raug mob.