Alumina (Al2O3) isticmaalka ugu muhiimsan
Qaybaha qalabka wax soo saarka semiconductor (qaybaha godka, flanges dahaarka, qaybaha qalabka etching, xajin wafer);Qaybaha wax-soo-saarka (kala-soocida, mishiinka qulqulka hawada, mishiinka dhogorta);Qaybaha warshadaha guud (mashiinka wax-ka-qabashada laser-ka, shafka wareega, xajinta);Saxnaanta sare, saxnaanta, qalabka birta ah ee kuleylka u adkeysata (meelaynta meelaynta, qalabka shirarka);Xiro qaybo adkaysi u leh (hagaha mashiinka sawiridda fiilada, kanaalka siliga birta, tareenka hagaha);Qaybaha dahaarka korantada (insulators, gaskets, bushings).