General hints :

1. Keyed alike cylinders can be supplied in all
     types of systems.
2. For every system a bitting chart and a security
    card will be handed over.
3. All systems, if required also individual cylinders,     will be supplied in protected profiles.
4. Spare keys, repairs respectively extensions to     existing systems are only made on presentation
    of the security card respectively the customary     imprinter or order slip.
5. Form for systems can be supplied on request.
6. 5 pin cylinder = Article series 3 ...
    6 pin cylinder = Article series 4 ...

Advice:
Bear in mind later extensions!

System advantages
 
1. A core diameter of 14 mm makes larger systems     possible.
2. Keys and pins made from anodized silver mean
    a reduced tear-and-wear effect and a longer     service life.
3. As standard 1st and 3rd pair of pins made from     hardened special steel, as such good drill     protection.
4. A patented locking technique provides legal     protection
  against copying and means greater key     security.
5. As of 6 key cuts optionally VdS Class B (BS). This     means that insurance requirements are met.
6. Keyed systems are compatible up- and     downwards, e.g. KV14 and V14.
    This allows for economic systems.
7. Door cylinders are manufactured according to DIN     EN 1303 and DIN 18 252.
    This means latest state-of-the-art security.