heat insulation refractory fire brick (221) Online Manufacturer
SiO2: 30%
Al2O3: 48%
Al2O3: 45-82%
MgO: 0.8-1.2
Al2O3 %: ≥48-90
Fe2O3 %: ≤1.0
Al2O3: ≥50
Apparent Porosity: ≤23
Raw Material: Mullite
Color: White
Color: Red Or Yellow
Raw Material: Clay
Cold Crushing Strength: ≥3 MPa
Linear Change On Reheating,(5h,≤2%): ≥1250 ℃
Al2O3: 45-82%
MgO: 0.8-1.2
Chemical Composition: Al2O3, SiO2, Fe2O3, CaO, MgO
Raw Materials: Chrome
Color: Red
Shape: Standard Or Special Shape
Shape: Brick
SiO2: 92%
Packaging Details: Fumugation pallet conform to exporting packing
Delivery Time: 5-8 working days
Al2O3: ≥75 %
Refractoriness: ≥1780 ℃
Raw Material: Andalusite
Al2O3: ≥65%
Bulk Density: ≤1.2 G/cm3
Cold Crushing Strength: ≥5 MPa
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