... nameHigh quality 60 Series PVC single hung Casement for houseProfile colourWhite,Ashy,Brown,Double colour co-exstrusion,Wooden laminated ... Air proof,Water proof,Sound insulation,corrosion-resistant2) Environmentally friendly, Energy Efficiency,Thermal insulation3) Anti-aging & Anti-Rust4) Fire ... 24 hours. side hinged window,inward swing casement double hung window,pvc double leaf casement window