Sleepers (cross-ties)

Family tree for sleepers (cross-ties)

    graph LR
    A["<a href='/classifications/hs/v1996/73'>73: Articles of iron or steel.</a>"]
A --> B["<a href='/classifications/hs/v1996/7302'>7302: 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 we</a>"]
B --> C["<a href='/classifications/hs/v1996/730220'>730220: Sleepers (cross-ties)</a>"]

    B --> D["<a href='/classifications/hs/v1996/730210'>730210: Rails</a>"]
B --> E["<a href='/classifications/hs/v1996/730230'>730230: Switch blades, crossing frogs, point rods and other crossing pieces</a>"]
B --> F["<a href='/classifications/hs/v1996/730240'>730240: Fish-plates and sole plates</a>"]
B --> G["<a href='/classifications/hs/v1996/730290'>730290: Other</a>"]

    

    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
class B level4
class C level6
class D level6
class E level6
class F level6
class G level6

  class C highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class C highlight