|
2903501
|
Insulating materials in general
|
|
2903510
|
Paper and board insulating materials
|
|
2903520
|
Plastics and rubber insulating materials
|
|
2903530
|
Glass and ceramic insulating materials
|
|
2903550
|
Mica based materials
|
|
2903560
|
Varnished fabrics
|
|
2903599
|
Other insulating materials
|
