| 名称 | ifc duct segment |
| 领域 | IFCROAD |
| URL | http://cbims.org.cn/allscope/IFCROAD-IfcDuctSegment |
| 分类编码 | IfcDuctSegment |
| 父类 | ifc rootifc productifc distribution elementifc flow segmentifc objectifc elementifc distribution flow elementifc object definition |
| 子类 | |
| 等价类 | IFCRAIL:ifc duct segment |