Namespace Xbim.Ifc2x3.CostResource Classes IfcAppliedValue IfcAppliedValueRelationship IfcCostValue IfcCurrencyRelationship IfcEnvironmentalImpactValue IfcReferencesValueDocument Interfaces IfcAppliedValueSelect Enums IfcAppliedValue.IfcAppliedValueClause IfcArithmeticOperatorEnum IfcEnvironmentalImpactCategoryEnum IfcEnvironmentalImpactValue.IfcEnvironmentalImpactValueClause