south africa fireclay brick for refused incinerator with ...
What is a fire brick? Clay Brick Association of South Africa In the making of firebrick, fireclay is fired in the kiln until it is partly vitrified, and for special purposes may also be glazed. High-grade fire clays can withstand temperatures of 1775 °C (3227 °F), but to be referred to as a 'fire clay' the material must withstand a minimum ...
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