… roofing frame-works, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and …
Explanatory notes
… roofing frame‑works, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and … plates, wide flats including so‑called universal plates, hoop, strip, forgings or castings, by riveting, bolting, … These devices usually have protuberances with tapped holes in which screws are inserted, at the time of assembly, …