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chemical engineering refractory technology
1. Magnesite chrome refractories
(A): are not at all resistant to the corrosive action of iron oxide.
(B): have better spalling resistance than chrome magnesite refractories.
(C): have very low (50 kg/cm2 ) cold crushing strength (C.C.S.), and can not be used in metalcase form.
(D): have very low thermal co-efficient of expansion.
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