b) In the iron and steel industry: steelmaking furnace linings, ferroalloy kilns, and iron mixing furnaces
c) In non-ferrous metallurgical industry furnaces, such as copper, lead, zinc, and side furnace linings;
d) In the building materials industry, such as magnesia bricks in lime kiln, magnesia spinel bricks in the cement rotary kiln.
e) In high-temperature calcining kilns, shaft kilns and tunnel kilns in the refractory manufacturing industry.
c) In non-ferrous metallurgical industry furnaces, such as copper, lead, zinc, and side furnace linings;
d) In the building materials industry, such as magnesia bricks in lime kiln, magnesia spinel bricks in the cement rotary kiln.
e) In high-temperature calcining kilns, shaft kilns and tunnel kilns in the refractory manufacturing industry.