| 
             Carbon / graphite. 
             | 
            
             -FH27S- 
             | 
        
        
            | 
             Carbon / graphite. 
             | 
            
             -FH42- 
             | 
        
        
            | 
             Carbon / graphite. 
             | 
            
             -FH42Y3- 
             | 
        
        
            | 
             Carbon / graphite. 
             | 
            
             -FH44Y2- 
             | 
        
        
            | 
             Carbon / graphite. 
             | 
            
             -FH44Y3- 
             | 
        
        
            | 
             Electro graphite. 
             | 
            
             -FE45S- 
             | 
        
        
            | 
             Electro graphite. 
             | 
            
             -FE45Y2- 
             | 
        
        
            | 
             Electro graphite. 
             | 
            
             -FE45Y3- 
             | 
        
        
            | 
             Electro graphite. 
             | 
            
             -FE65- 
             | 
        
        
            | 
             Electro graphite salt impregnated. 
             | 
            
             -FE67M- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated. 
             | 
            
             -FH27Z2- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated. 
             | 
            
             -FH42Z2- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated. 
             | 
            
             -FH42Z5- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated. 
             | 
            
             -FH44Z2- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated, 
             | 
            
             -FH44Z5- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated, 
             | 
            
             -FH82Z2- 
             | 
        
        
            | 
             Carbon / graphite resin impregnated. 
             | 
            
             -FH82Z5- 
             | 
        
        
            | 
             Electro graphite resin impregnated. 
             | 
            
             -FE45Z2- 
             | 
        
        
            | 
             Carbon / graphite antimony impregnated. 
             | 
            
             -FH42A- 
             | 
        
        
            | 
             Carbon / graphite lead antimony IMPR. 
             | 
            
             -FH42B- 
             | 
        
        
            | 
             Carbon / graphite lead antimony  IMPR . 
             | 
            
             -FH44B- 
             | 
        
        
            | 
             Carbon / graphite copper impregnated. 
             | 
            
             -FH44C- 
             | 
        
        
            | 
             Carbon / graphite antimony impregnated. 
             | 
            
             -FH82A- 
             | 
        
        
            | 
             Carbon / graphite antimony impregnated. 
             | 
            
             -FE45A- 
             | 
        
        
            | 
             Resin bonded. 
             | 
            
             -FF501- 
             | 
        
        
            | 
             Resin bonded. 
             | 
            
             -FF521- 
             | 
        
        
            | 
             Resin bonded 
             | 
            
             -FF931- 
             |