Section 16 Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers and parts and accessories of such articles 84 Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof. 84 29 Self-propelled bulldozers, angledozers, graders, levellers, scrapers, mechanical shovels, excavators, shovel loaders, tamping machines and road rollers. Commodity Code Description 84 29 11 Track laying 84 29 19 Other 84 29 20 Self-propelled graders and levellers 84 29 30 Self-propelled scrapers 84 29 40 Self-propelled tamping machines and road-rollers 84 29 51 Front-end shovel loaders 84 29 52 Machinery with a 360░ revolving superstructure 84 29 59 Other