| Standard International Trade Classification (SITC) - level 3 - Group | 778 | Electrical machinery and apparatus, n.e.s. | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77881 | Electromagnets;electromagnetic couplings,clutches,brakes,lifting heads | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77882 | Electric.signalling,safety/traffic control equipment for railways,etc | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77883 | Parts of the equipment of heading 778.82 | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77884 | Electric sound or visual signalling apparatus,not of 778.34 or 778.82 | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77885 | Parts of the equipment of heading 778.84 | 
                
                  
                    | Standard International Trade Classification (SITC) - level 5 - Basic Heading | 77886 | Carbon electrodes,carbon brushes,oth.carb.articles,for electr.purposes |