China Refractory Jm26 Jm23 Jm28 Mullite Insulation
2021-6-27 · Refractory Jm26 JM23 JM28 Mullite Insulation Brick The bulk density of GM series lightweight heat-insulating brick is 0.6~1.25g/cm3. Working temperatures range from 1300ºC to 1600ºC.
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