“hoistway”简单造句，hoistway造句子

Elastic mid-strength rock wool board: used for heat preservation, fireproofing and sound absorption for the building wall/roof, such as curtain wall, inner wall partition and elevator hoistway, etc.

It solves the problem of steel beam position to be through and local design of such structures as elevator hoistway or stair tunnel and one-column-multi-pile design and construction.