.. _exhale_define__ifc4x3__rc1-definitions_8h_1a083e0b642c48729237374905283d1a41:

Define SCHEMA_IfcMechanicalFastener_NominalDiameter_IS_OPTIONAL
===============================================================

- Defined in :ref:`file_src_ifcparse_Ifc4x3_rc1-definitions.h`


Define Documentation
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.. doxygendefine:: SCHEMA_IfcMechanicalFastener_NominalDiameter_IS_OPTIONAL