Alumina (Al2O3) eji eme ihe
Semiconductor na-emepụta akụrụngwa akụrụngwa (akụkụ oghere, flanges mkpuchi, akụkụ akụrụngwa etching, mgbachi wafer);Akụkụ igwe ihe (nkewa, igwe igwe ikuku, igwe igwe bead);Akụkụ ụlọ ọrụ mmepụta ihe (leza nhazi igwe nozzle, aro na-atụgharị, ibu);Ngosipụta dị elu, nkenke, ngwá ọrụ metallurgical na-eguzogide okpomọkụ (nhazi nhazi, mgbakọ mgbakọ);Yiri akụkụ ndị na-eguzogide (nduzi igwe na-ese waya, ọwa igwe igwe, ụgbọ okporo ígwè);Akụkụ mkpuchi eletriki (insulators, gaskets, bushings).