| 摘要 |
A prefabricated ondol panel is provided to prevent that the hot water pipe protrudes outward of the floor heating panel. A prefabricated ondol panel comprises as follows. A hot water pipe(20) is installed inside a panel body(10). The panel body is filled with filler of a case of the panel frame. The panel frame is integrated with four side wall(113) in the edge of square bottom plate. A T-shaped protrusion(114) is formed in the outer side of one side wall adjacent to one side wall of the side walls. A T-shaped groove(115) is formed in the outer side of side wall which faces the protrusion. |
