The description of the item 730230 of New-Zealand HScode: Railway or tramway track construction material of iron or steel, the following: rails, checkrails and rack rails, switch blades, crossing frogs, point rods and other crossing pieces, sleepers (crossties), fishplates, chairs, chair wedges, sole plates (base plates), rail clips, bedplates, ties and other material specialised for jointing or fixing rails : Switch blades, crossing frogs, point rods and other crossing pieces