CADMaterialIdRef 

ID used by a CAD/BIM program to reference its internal materials library

Attribute Information

Used By

Element CADMaterialId

Source 

<xsd:attribute name="CADMaterialIdRef" type="xsd:string" use="required">
  <xsd:annotation>
    <xsd:documentation>ID used by a CAD/BIM program to reference its internal materials library</xsd:documentation>
  </xsd:annotation>
</xsd:attribute>

Sample