| http://www.w3.org/ns/prov#value | - There is also a particular need for such a hole closing plug that can be used, for example, to close a hole in a hollow wall or door of a structure, such as a refrigerator or other appliance, mobile home or recreational water craft, in which one desires to place insulation, particularly foaming insulation which is installed in a liquid form and then permitted to expand to fill the space within the
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