Considering its colourable and castable nature, its extended hardness range, low wear and superior load bearing capacity, polyurethane is a smart substitute for rubber.

考虑到浇铸料的性，选择具有更大硬度范围，低磨损，优越承载能力的聚酯替代橡胶是明智的。

This paper introduces the aggregate of lightweight mollite and the characters of its blended castable as well as the practical use of this castable in steel rolling furnace.

介绍了来石骨料及用该骨料配制的来石浇注料的性能，并介绍了该浇注料在轧钢加热炉上的应用情况。