| 40 47 00 |
Refractories
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| Includes | silica, alumina and carbon–based refractory materials for industrial processes. |
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Refractories |
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Silica Refractories |
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Alumina Refractories |
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Carbon and Graphite Refractories |
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Castable Refractories |
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Rammed Refractories |
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Refractory Concrete |