Kubisya no gusya ibicuruzwa byamabuye, birakwiye guhitamo umukandara wa alumina wumukara hamwe na silicon karbide sanding umukandara.
Brown yahujije alumina, karbide ya silicon hamwe nigitambara cya polyester, kurwanya-gufunga, kurwanya static, imbaraga zikomeye, imbaraga zikomeye.
Ahanini ikoreshwa muri: marble karemano, marble artificiel, quartz ibuye, calcium silicate ikibaho nibindi bikoresho.