| 摘要 |
A method is disclosed for forming an insulated storage enclosure comprising the steps of providing a slab of polyurethane, forming recesses in the slab representing access openings to the enclosure, applying a layer of fiberglass reinforced resinous material to one side of said slab, cutting said slab into sections representing the side and ceiling members of the enclosure, providing a base, erecting the side and ceiling members on the base, and applying a layer of the reinforced material over the uncoated side and ceiling surfaces. Also disclosed is the method of constructing an insulted closure member for the enclosure.
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