1)Name:PVC Sliding Window 2)Packing:Export standard 3)Hardware: ROTO/SIEGENIA/KINLONG 4)Glass:5mm, 6mm,5+9A+5,5+12A+5. They are qualified in heat-insulation without fading or deforming.With fine material and elaborate design, our doors and windows are distinctive of being energy-saving, environment-protecting, corrosion-resistant, sound insulating, waterproof, externally pleasing and elegant, etc ...