the prefabricated parts of the beams consisting wholly of metal (E04B5/28 takes precedence)

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Floors; Floor construction with regard to insulation; Connections specially adapted therefor (elements for floors, e.g. bricks, stones, filling bodies, girders, E04C; flooring as finishing work, insulation of flooring, sectional false floors, e.g. for computers E04F15/00) > Load-carrying floor structures wholly or partly cast or similarly formed in situ (E04B5/43 - E04B5/48 take precedence; floors merely characterised by the prefabricated elements E04C) > Floor structures partly formed in situ > with stiffening ribs or other beam-like formations wholly or partly prefabricated (with all load-carrying parts substantially consisting of prefabricated units E04B5/02 ) > the prefabricated parts of the beams consisting wholly of metal (E04B5/28 takes precedence)