铁或钢弹簧及弹簧片 — 用于土方机械

Other articles of iron or steel; Articles of iron or steel wire, other

Springs and leaves for springs, of iron or steel; Helical springs, other

Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel; Threaded elbows, bends and sleeves, other

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel — Cold-drawn or cold-rolled (cold-reduced)

Railway or tramway track construction material of iron or steel, the following: rails, check-rails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialized for jointing or fixing rails — Switch blades, crossing frogs, point rods and other crossing pieces

Railway or tramway track construction material of iron or steel, the following: rails, check-rails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialized for jointing or fixing rails — Fish-plates and sole plates

Railway or tramway track construction material of iron or steel, the following: rails, check-rails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (cross-ties), fish-plates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialized for jointing or fixing rails — Sleepers (cross-ties)

Tubes, pipes and hollow profiles, seamless, of iron (other than cast iron) or steel; Casing, tubing and drill pipe, of a kind used in drilling for oil or gas; Other drill pipe, other