Magnesium-carbon-calcium fireproof brick is a kind of economical and practical ladle liner material.

镁钙碳砖是一种经济又实用的包衬材料。

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Magnesium-carbon-calcium fireproof brick is a kind of economical and practical ladle liner material.

镁钙碳砖是一种经济又实用的包衬材料。

youdao