Iroyin
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The Classification Of Nature Stone
Ni ọpọlọpọ awọn ẹya agbaye, o ṣee ṣe lati kọ pẹlu okuta adayeba agbegbe. Awọn ohun-ini ti ara ti okuta adayeba yatọ jakejado da lori nọmba awọn iru okuta; okuta adayeba to dara wa fun fere gbogbo ibeere ohun elo ile. O ti wa ni ti kii-flammable ẹya...Ka siwaju