R90 is a patented reverseble key locking system belonging to the CSR family. This cylinder meets the highest safety standards.
R90 has three pins’ rows: 6 pins in the inferior line, up to 6 pins in the lateral line and 5 pins in the superior line. This cylinder guarantees a high permutation calculation and is suitable for multi-level master key systems.
R90 keys are made of nickel silver.