This class is used to attach steel fabrication information to various Revit elements. 
   Namespace:   Autodesk.Revit.DB.Steel  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 19.0.0.0 (19.0.0.405) 
  Since:  2019 
Syntax
Remarks
 Revit elements which can have fabrication information are: 
 - FamilyInstance (structural beams and columns).
 - StructuralConnectionHandler elements associated to the connection.
 -  Specific steel connection elements (bolts, anchors, plates, etc). These connection elements will be of type element but with categories related to structural connections, for example: 
- OST_StructConnectionWelds
 - OST_StructConnectionHoles
 - OST_StructConnectionModifiers
 - OST_StructConnectionShearStuds
 - OST_StructConnectionBolts
 - OST_StructConnectionAnchors
 - OST_StructConnectionPlates
 
 - Some concrete elements (walls, floors, concrete beams, ...) when they are input elements to detailed steel connections.