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priceComponentType

A Schema.org Property

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.
Identifies a price component (for example, a line item on an invoice), part of the total price for an offer.
Values expected to be one of these types
PriceComponentTypeEnumeration
Used on these types
UnitPriceSpecification

Source

https://github.com/schemaorg/schemaorg/issues/2689