| http://www.w3.org/ns/prov#value | - A Grade GI-1000 silicone rubber mold (Plastic Tooling Supply Co., Exton, Pa.) having an internal cavity measuring about 7 inches (178 mm) square and about 51/4 inches (133 mm) deep was cleaned with tap water and bar soap to remove any dirt or other debris from the mold, and the mold was placed onto a flat rigid aluminum plate.
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