1, CE/SONCAP certificate 2, UV resistant 3, High quality hardware: Multi-point lock and handle 4, Eco-friendly Opening typeSliding/Casement/Turn-tilt/Awning/Hopper/Tilt-sliding and so onPVC Profile Series60mm series, 80mm series, 88mm series, 88mm series, 95 series.Chamber: 3, 4, 5, 6PVC Colorwhite or other colors as you need; wooden grain color also can be madeGlasssingle or double glass, double ...