... .30% energy-saving Thermal break aluminum window out-opening casement window Main material Top-grade thermal break-bridge aluminum profileSurface treatmentElectrostatic powder coatingColorOur company ... comprehensive performance,best choice of High-grade buildingOpening styleCasement,sliding,tilt-turn,tilt-sliding,sing-hung,double-hung,ectCertificateISO9001-2008PackageUsually used cartons ...