main ingredient of corundum - Okpokoro ọkụ na -agbaze ọkụ, ọkụ na -ekpo ọkụ induction, ọkụ na -eme ka ọkụ sie ike, nnukwu ite Muffle, brik na -agbanwe agbanwe, ụlọ ọrụ China, onye na -eweta ngwaahịa, onye na -emepụta ihe, onye na -ere ahịa.

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main ingredient of corundum - Okpokoro ọkụ na -agbaze ọkụ, ọkụ na -ekpo ọkụ induction, ọkụ na -eme ka ọkụ sie ike, nnukwu ite Muffle, brik na -agbanwe agbanwe, ụlọ ọrụ China, onye na -eweta ngwaahịa, onye na -emepụta ihe, onye na -ere ahịa.

Kedu ihe bụ isi ihe nke corundum?