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 specialised for jointing or fixing rails

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 specialised for jointing or fixing rails

Heusler are intermetallic compounds which can be classified in chapter 72, 73, 74, 75, 81, etc. Without knowing the composition of the alloys is not possible to assign a CN code

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