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xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:209010618
rdf:type
prov:Entity
prov:value
The thin-walled hollow shell is filled with a core of a plastic foaming material including a suitable foaming agent which foams to fill the shell and to exert a force on the shell radially outwardly of the longitudinal axis thereby forming a solid composite column.
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n5:com
Subject Item
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isa:209010618