Reducing PYRAMID - Buy password (registration)
  The dimensions E and F can be positive, negative or zero !
  Sketch of dimensions

 

     
  A =    mm.
  B =    mm.
  C =    mm.
  D =    mm.
  H =  mm.
  E =  mm.
  F =  mm.
 

   
Password :
   
    
 
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