… and columns), of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in …
Explanatory notes
… and columns), of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in … or other). These devices usually have protuberances with tapped holes in which screws are inserted, at the time of assembly, to fix the clamps to the tubing. Apart from the structures and parts of structures mentioned …