| 名称 | ifc subgrade element assembly |
| 领域 | IFCRAIL |
| URL | http://cbims.org.cn/allscope/IFCRAIL-IfcSubgradeElementAssembly |
| 分类编码 | IfcSubgradeElementAssembly |
| 父类 | ifc rootifc productifc civil elementifc civil element assemblyifc objectifc elementifc object definition |
| 子类 | ifc subgrade subsoil reinforcement pile assemblyifc subgrade retaining structure section assembly |
| 等价类 |