… blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair …
Explanatory notes
… blades, crossing frogs, point rods and other crossing pieces, sleepers (cross‑ties), fish‑plates, chairs, chair … a cross‑section in the form of a “U” or a very short‑legged capital omega, and they remain in the heading whether or not … and are fixed to them by cramps, bolts, coach screws, spikes or, in the case of steel, by welding. Rail …