Oa Tatou Oloa Lelei

O a tatou oloa autu e aofia ai mea maualuga-faatinoga e pei o corundum composite, corundum-mullite ipu ceramic, tuyere ma taphole oloa; fa'amuina microporous alumini carbon; fuafuaga atoa, gaosiga, fausiaina ma post-tausiga o ladle uʻamea (tank) ma torpedo taavale refractory lining etc.