| Name | Value | Description |
| CircularPMILaySymbolType | 5 | Circular lay pattern. |
| CrosshatchPMILaySymbolType | 3 | Crosshatch lay pattern. |
| MultidirectionalPMILaySymbolType | 4 | Multidirectional lay pattern. |
| NonePMILaySymbolType | 0 | No lay symbol. |
| ParallelPMILaySymbolType | 1 | Parallel lay pattern. |
| ParticulatePMILaySymbolType | 7 | Particulate lay pattern. |
| PerpendicularPMILaySymbolType | 2 | Perpendicular lay pattern. |
| RadialPMILaySymbolType | 6 | Radial lay pattern. |