Muaj pes tsawg leeg corundum cib

Corundum bricks, corundum cib xa mus rau refractory bricks nrog alumina cov ntsiab lus tsis tsawg tshaj li 90% thiab corundum raws li lub ntsiab theem, uas yuav muab faib ua sintered corundum bricks thiab fused corundum cib.