* Aluminium alloy 6063-T5, high tech profile and renforce material *High quality glass fiber thermal break insulation bar with high loading capacity *15 to 20 years of warranty on powder coating surface treatment *Multi-point hardware lock system for weather sealing and burglarproofing *Corner stability is improved and the smooth surface joint is ensured by the corner locking key. *EPDM foam weathersealing strip for glass panels is utilised because it provides greater performance and requires less upkeep than conventional adhesive.