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Bridges, heavy steel
Bridges, light alloy
Bridges, metal, suspension
Bridges, metal, swing
Bridges, metal, transporter
Bridges, metal, bascule
Bridges, metal, prefabricated unit
Bridges, metal, pipe
Bridges, metal, railway and road
Footbridges, metal
Utilities bridges, temporary, steel
Walkways, suspended, catwalks, metal
Trestle-work, metal
Lock and sluice gates, metal
Spillway gates, steel
Flood barriers, metal, mobile
Masts and pylons, steel
Masts and pylons, light alloys
Masts, metal, telescopic
Masts and towers, metal, for communication systems
Masts, metal, controlled triggering of avalanches
Electric transmission line towers and electricity pylons, metal
Poles, metal, for telephone and electricity power lines
Cableway towers, metal
Towers, floodlighting or aircraft beacon, metal
Street standards, tramway and trolleybus, steel
Wind generator towers, steel
Stanchions and lattice stanchions, metal
Bridge bearings, metal
Arch centres, metal, for tunnels
Expansion joints, metal, for roads and bridges
Flooring sheets, metal, drawn, for bridges
Roads and runways, portable, prefabricated metal
Structural steelwork for hydroelectric plant
Offshore structures, metal
Steelwork, prefabricated, for ships
Prefabricated superstructures, metal, for ships
Pipe support systems, metal
Avalanche barriers, metal
Air raid shelter elements, metal
Pipe racks, metal, for the petroleum industry
