to make this device, invert a sample and fill it with a mixture of water and "ultracal" plaster from US Gypsum. When plaster is set, drill .o30 holes slanted inward from top surfaces to base. Place male mold in vacuum forming machine. Apply radiant heat to sheet plastic until it starts to sag in frame. Drop frame over mold and switch vacuum on.use router to trim edges as desired. This item cannot be sold in the United States for use in baby beds.
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