INSTALLING LOCATION DETERMINING DEVICE FOR CEILING RECESSED AIR CONDITIONERPURPOSE: To provided a device for easily determining and checking dimensions for determining a location for installing an air conditioner.KUSAKABE HIROYOSHI日下部 宏義
between the mark 11 and the mark (P), in corresponding relation with thickness sizes of ceiling plates of different thickness in order in a direction of starting from the mark 11 corresponding to the surface location of the ceiling plate to the mark (P) corresponding to the predetermined locat...