PROBLEM TO BE SOLVED: To save the wart of a paper sheet by reducing the size of the paper sheet using the paper sheet in the handling of a heavy product such as an air conditioner. SOLUTION: A lightweight, easy-to-use and useful tool for adding portability to a product is obtained by reducing the size of the paper sheet before processing by forming the paper sheet for installation by opening up the paper sheet for the installation 1 of an indoor unit body 3.
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