| 摘要 |
Web, with new way of bending (7; 8; 9; 10; 11; 12; 13; 14) for trusses, trusses with at least one chord consisting of a cast slab and also chords for a slab in a cast member, manufactured from bar, wire or strip material, which like diagonals in a lattice girder are inclined in relation to the longitudinal direction of the chord, fastened to the chords or to chord and slab respectively.
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