铁或钢的铁路或电车轨道建筑材料,包括以下产品:钢轨、导轨和齿轨;道岔刀片、交叉渡线及其他交叉部件;枕木(木枕);鱼尾板、椅座、椅座楔、垫板、轨道夹、胶垫及其他用于轨道接合或固定的专用材料:
上级范围与英文依据
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:
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: