Germany – Laboratory building construction work – Schlosserarbeiten I

1 x single-flight steel staircase with 25 steps, 1 x single-flight steel staircase with 28 steps, 1 x cantilevered trapezoidal steel structure with staircase 21 steps and adjacent seating steps with 7 steps, glass railing h=approx. 1.00-1.20m total length approx. 125m, wooden handrail on glass railing approx. 50m, infill bar railing with wooden handrail on double-flight staircases and platforms 20 units with average individual lengths of approx. 3.50m, wooden handrail on staircase wall approx. 170m