shell material an entity of type: ObjectProperty

is a possessed aspect being a role of the substance of an artefact when used to construct the artefact from. Therefore the substance should be in a solid state at the conditions at which the artefact exists.
shell material 
xsd:dateTime 2017-02-15T19:47:29Z 
xsd:dateTime 2019-10-01T00:57:44Z 
xsd:integer 40 

data from the linked data cloud