Namespace Xbim.Ifc2x3.PlumbingFireProtectionDomain Classes IfcFireSuppressionTerminalType IfcSanitaryTerminalType IfcStackTerminalType IfcWasteTerminalType Enums IfcFireSuppressionTerminalTypeEnum IfcSanitaryTerminalTypeEnum IfcStackTerminalTypeEnum IfcWasteTerminalTypeEnum