Alumina (Al2O3) hoʻohana nui
ʻO nā ʻāpana hana semiconductor (nā ʻāpana lua, nā flanges insulation, nā ʻāpana mea hana etching, wafer clamp);Nā ʻāpana wili (classifier, air flow mill, bead mill);ʻO nā mea ʻenehana nui (laser processing machine nozzle, rotating shaft, bearing);ʻO ka pololei kiʻekiʻe, ka pololei, nā mea hana metala pale wela (ka hoʻonohonoho hoʻonohonoho, ka mea hoʻohui hui);E hoʻohana i nā ʻāpana kūʻokoʻa (alakaʻi o ka mīkini kaha kiʻi uea, ke ala uea kila, ke ala alakaʻi);Nā ʻāpana insulation uila (insulators, gaskets, bushings).