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AL2O3 content is more than 60%, refractory temperature is 1600 degrees, specific gravity is 0.4-1.35, porosity is 0.66-0.73　 compressive strength, 1-8MPA

Poly-light high-alumina brick has high porosity, good heat insulation performance, high temperature resistance, suitable for heat insulation layer and insulation layer of masonry industrial kiln, can reduce the weight of the furnace body, shorten the furnace time, reduce the heat diffusion, protect the furnace Features such as uniform temperature.