The GREFET CS50 Series is a refined range of high-performance aluminium window and door systems designed to bring together aesthetics, durability and everyday comfort. Engineered with flexible threshold options and advanced sealing solutions, the series delivers smooth operation, enhanced thermal insulation and reduced sound transmission for modern living spaces. Supporting large shutter heights with robust 3D hinge technology and multi point locking systems, CS50 ensures both stability and security in residential and commercial applications. The series also features parallel hinge solutions for seamless wall integration and clean architectural lines, tested for long term performance and reliability. With glazing compatibility up to 32mm DGU glass, the CS50 Series offers the perfect balance of elegance, functionality and energy efficiency for contemporary architecture.