Blast Furnaces.
Bridges.
Bunds.
Chimneys and flues.
Coking Ovens.
Cooling Ponds.
Floating pontoons, with any bridges or gangways not of a temporary nature used in connection therewith.
Flumes, conduits and ducts.
Foundations, settings, fixed gantries, supports, walkways, stairways, handrails, catwalks, stages, staithes and platforms.
Headgear for—
mines, quarries and pits;
wells.
Masts (including guy ropes) and towers for radar or communication signals.
Pits, beds and bays.
Radio telescopes.
Shiplifts and building berths.
Tipplers.
Transversers and turntables.
Well casings and liners.