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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 penta cross (K90), penta (K84), quattro plus (K85), gemini plus (K87), expert cross (K89), expert plus (K83) and matrix plus (K86) are patented, reversible master key systems representing the premium segment. The patent offers 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. While penta, quattro and gemini are in-house systems that are exclusively manufactured in our factories, expert and matrix are partner systems that can also be assembled by authorized 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 B, the highest protection grade D can be achieved with integrated carbide steel inserts. • quattro and expert have 4 pin rows with up to 22 simultaneously used pin positions out of 44 positions in total • gemini and matrix have 3 pin rows with 16 simultaneously used pin positions out of 32 positions in total • cylinder bodies are made of brass • keys are made of nickel silver Please list the Technical Data according to the List in the chapter ``Product group specific calculation rules`` Example: Technical Data for Locking Cylinders acc. to the classification in EN 1303: Delivery status: One (1) serial standard double cylinder includes three (3) keys, a mounting-screw, a user-manual and a security card. Including the packaging the cylinder will be supplied with a weight of 0,270kg. Base materials/Ancillary materials The material composition of the product is the following: