Ukucoceka okuphezulu kweAlumina/Aluminiyam oxide/AI2O3
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Ukucoceka okuphezulu kweAlumina / ukucoceka okuphezulu kwe-aluminium oxide / ukucoceka okuphezulu kwe-AI2O3
Ukucoceka okuphezulu kweAlumina / ukucoceka okuphezulu kwe-aluminium oxide / ukucoceka okuphezulu kwe-AI2O3 kubhekisela kwi-alumina enobunyulu obungaphezu kwe-99.99% kunye ne-99.999%
