This is the most classic of key models, the one that recalls the origins of the Bianchi 1770 Group. Until the not too distant past, this was THE key; today, this model is used only for high security installations, such as safes, but it is still a product that can join high technology and experience like no other, and thus express two of Keyline's basic concepts.
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Keyline keys are manufactured exclusively with high quality prime materials:
All these materials are particularly suitable for the milling/cutting operations.