RWT64 RWT64 Joinery System is a thermally insulated aluminum door and window system with a frame depth of 64 mm. Profile options with 74.2 mm wing depth and 1.6 / 1.8 / 2 mm wall thickness are available. It has a 24 mm thermal barrier and a maximum glass thickness of 44 mm. It provides convenience in application with its normal opening, double axis, transom, pull-out, folding opening options as well as sash profile options suitable for PVC opening accessories. Please contact for detailed information about the products.