| 摘要 |
PURPOSE: A dual balcony block is provided to enable the reconstruction by facilitating to deconstruct and to variously utilize for a floor material or small garden by enabling to be used upside down. CONSTITUTION: A dual balcony block comprises a main block(100) and a connection block. The polygonal main block comprises a first bottom surface and a first side wall which is protruded by one or more connection protrusions(110). The first bottom surface is equipped with a plurality of drain holes(120) and a reinforcement rib. The connection block comprises a second bottom surface and a second side wall which is equipped with one or more cut grooves. The connection block is joined to each connection protrusion.
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