This .NET class wraps the AcGiWebLightTraits::WebSymmetry ObjectARX class. 

Types of symmetry in the web file.

Public Enum WebSymmetry
  NoSymmetry
  SingleSymmetry
  DoubleSymmetry
  AxialSymmetry
End Enum

public enum WebSymmetry {
  NoSymmetry,
  SingleSymmetry,
  DoubleSymmetry,
  AxialSymmetry
}