The present invention is provided on the lower portion of the prop head and the supporter after the roof construction to lower the slab panel and the beam more stable when descending along the outside of the supporter when lowering the slab panel and beam, and after construction Detachable prop head guide used for construction using the stand-alone prop head which can be easily detached from the supporter, A prop head (PROP HEAD, 5000, 5000 ') for connecting the beam BEAM and supporting the slab panel and the beam by being supported by the sliding bar 7300 of the supporter at the bottom; Separate prop head guides 6000 and 6000 which are provided outside the sliding bar 7300 among the lower prop head and the supporter 7000 and are used for the construction using the descending prop head which is lowered like the sliding bar when the slab panel and the beam are lowered. ').
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