Shiididda iyo nadiifinta alaabada dhagaxa ah, waxay ku habboon tahay in la doorto suunka ciidda ee alumina isku dhafan ee brown iyo suunka carbide silikoon.
Brown alumina isku qasan, silikoon carbide iyo saldhig maro polyester ah, anti-xirmo, anti-static, iska caabin xoog leh, xoog adkaysi sare.
Inta badan waxaa loo isticmaalaa: marmar dabiici ah, marmar macmal ah, dhagax quartz, looxa silicate calcium iyo qalab kale oo isku dhafan.