# Type declarations specific to markup GDT

> 4.0

Type Definitions

- `A3DMDTolerance`
- `A3DMDFeatureControlFrame`
- `A3DMDFCFRow`
- `A3DMDFCFDrawingRow`
- `A3DMDFCFDraftingRow`
- `A3DMDFCFRowDatum`
- `A3DMDFCFToleranceValue`
- `A3DMDFCValue`
- `A3DMDFCTolerancePerUnit`
- `A3DMDFCProjectedZone`
- `A3DMDFCFIndicator`
- `A3DMDFCFDraftingIndicator`
- `A3DMDToleranceSize`
- `A3DMDToleranceSizeValue`

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