… (for example, bridges and bridge-sections, towers, lattice masts, roofs, roofing frameworks, doors and windows …
Explanatory notes
… (for example, bridges and bridge‑sections, towers, lattice masts, roofs, roofing frameworks, doors and windows … structural parts are sometimes bonded together with synthetic resins or rubber compounds instead of being fixed … frameworks, ships’ superstructures, bridges, sliding doors, electric grid or radio pylons, telescopic pit props, door or …