“sillimanite”可以造什么句，sillimanite造句
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An overview of the industry standard "Kyanite, andalusite and sillimanite'
kyanite-sillimanite type facies series
Properties of Products: The main raw materials for these products are andalusite, sillimanite, corundum, mullite stones, bauxite and flint. Pressing and sintering during the production.
