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Information about the enterprise dormakaba stands for a broad offering of products, solutions and services for smart and secure access to buildings and rooms from a single source. Product description/ Product definition pextra Q, pextra+, pextra and AP2000 are serrated master key systems representing the high-quality segment. Furthermore, pextra Q and pextra+ are patented and offer legal protection against commercial imitation. Duplicate keys are only made by dormakaba itself or by authorized partners and require identification by means of a security card. The main production site of dormakaba serrated key systems cylinders/keys and parts is in Herzogenburg, Austria. Finished cylinders and keys are manufactured either directly in the factory or by authorised dealers. The product range consists of factory-made profiles and dealer profiles. Whilst cylinders and keys with factory made profiles are manufactured in our factory, keys with dealer profiles can also be finalized directly with authorised dealers. For placing the mechanical key systems on the market in the European Union/European Free Trade Association (EU/EFTA, with the exception of Switzerland) the following legal provisions apply: All systems are classified according to the European locking cylinder standards EN1303 and DIN18252. While the basic cylinder configuration already fulfils the attack resistance class C, the highest protection grade D can be achieved with an additional steel reinforcemnt bar or a scarificial breaking slot.