58mm tilt & Turn window/door system. Multi-Solution for different type of window and door assembly. 3mm Wall thickness brings remarkable strength. Pre-Positioned thermal chamber gives excellent insulation. Slope rebate helps to drain out water.Locking-Keeps are screwed firmly with the steel reinforcement. Possible to take the glass from 5mm to 28mm by easy-changing glazing bead and gasket. Lead free – calcium-Zinc formulation. Foil lamination profile available.