Multi-ply paper and paperboard :-- With only one outer layer bleached

Family tree for multi-ply paper and paperboard :-- with only one outer layer bleached

    graph LR
    A["<a href='/classifications/hs/v1996/48'>48: Paper &amp; paperboard; art of paper pulp,  paper/paperboard</a>"]
A --> B["<a href='/classifications/hs/v1996/4805'>4805: Other uncoated paper and paperboard, in rolls or sheets, not further worked or processed than as specified in Note 2 to this Chapter.</a>"]
B --> C["<a href='/classifications/hs/v1996/480522'>480522: Multi-ply paper and paperboard :-- With only one outer layer bleached</a>"]

    B --> D["<a href='/classifications/hs/v1996/480510'>480510: Semi-chemical fluting paper (corrugating medium)</a>"]
B --> E["<a href='/classifications/hs/v1996/480521'>480521: Multi-ply paper and paperboard :-- Each layer bleached</a>"]
B --> F["<a href='/classifications/hs/v1996/480523'>480523: Multi-ply paper and paperboard :-- Having three or more layers, of which only the two outer layers are bleached</a>"]
B --> G["<a href='/classifications/hs/v1996/480529'>480529: Multi-ply paper and paperboard :-- Other</a>"]
B --> H["<a href='/classifications/hs/v1996/480530'>480530: Sulphite wrapping paper</a>"]
B --> I["<a href='/classifications/hs/v1996/480540'>480540: Filter paper and paperboard</a>"]
B --> J["<a href='/classifications/hs/v1996/480550'>480550: Felt paper and paperboard</a>"]
B --> K["<a href='/classifications/hs/v1996/480560'>480560: Other paper and paperboard, weighing 150 g/m2 or less</a>"]
B --> L["<a href='/classifications/hs/v1996/480570'>480570: Other paper and paperboard, weighing more than 150 g/m2 but less than 225 g/m2</a>"]
B --> M["<a href='/classifications/hs/v1996/480580'>480580: Other paper and paperboard, weighing 225 g/m2 or more</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 H level6
class I level6
class J level6
class K level6
class L level6
class M 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