A rolled, rigidized surface finish and high MOR give a tough, economic refractory grade product.
通过滚压刚化表面涂饰和高mor，得到的坚固、经济的耐火级产品。
RHI is the world's leading supplier of high-grade ceramic refractory products and services.
RHI是世界领先的高等级陶瓷耐火材料产品和服务提供者。
Sillimanite is widely used as an important material for high-grade refractory products.
硅线石用途广泛，也是高级耐火材料的重要原料。
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