Ceramic Square Ruler wanda Al2O3 yayi tare da madaidaitan saman shida bisa ga DIN Standard.A flatness, madaidaiciya, perpendicular da parallelism iya isa 0.001mm.Ceramic Square yana da mafi kyawun kaddarorin jiki, wanda zai iya kiyaye daidaitattun daidaito na dogon lokaci, juriya mai kyau da ƙarancin nauyi.Ma'aunin yumbu yana haɓaka aunawa don haka farashinsa ya fi ma'aunin granite da kayan auna ƙarfe.