price of density 1.1 silica insulation fire bricks in ...
Mullite Insulation Brick - RS Kiln Refactory Material Company - Cheap Refractory Fire Brick For Sale Supplier. Mullite insulation brick is a new type of refractory bricks in China, which can directly contact the flame, and has the characteristics of high temperature resistance, lightness, low thermal conductivity and remarkable energy saving effect.
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