| 名称 | ifc structural surface member varying |
| 领域 | IFCROAD |
| URL | http://cbims.org.cn/allscope/IFCROAD-IfcStructuralSurfaceMemberVarying |
| 分类编码 | IfcStructuralSurfaceMemberVarying |
| 父类 | ifc structural memberifc rootifc structural itemifc productifc objectifc object definitionifc structural surface member |
| 子类 | |
| 等价类 | IFCRAIL:ifc structural surface member varying |