Aluminium Tilt&turn Window Tilt and turn window can keep room clean, sanitary and safe 1. Reasonable and strict processing flow 2. Strict quality inspection 3.Higher quality, Lower price . Performance Parameters: Sound insulation: RW≥28dB Wind pressure resistance: P≥5000Pa Air permeation resistance: Q1≤0.5m3/m·h, Q2≤m3/m2·h Water resistance: P≥500Pa U value 1.86 Watt / m2 Kelvin (tested) Glass(as per customer's request): 1.single:5mm,6mm,8mm 2.double: 5mm+6mm/9mm/12mm+5mm 3.laminated: 5mm+0.38/0.76/1.52PVB+5mm Low-E Features: 1. Excellent appearance with smooth shape, reasonable structure; 2. Using European general hardware or China top-brand hardware; 3. Good performance in air tightness, water proof and safety, effectively insulating sound and heat; 4. Durable, stronger, fireproof, antiseptic; 5. Available in any sizes as per your needs; 6. Elegant, econmical and popular use; 7. Different glass options are avaliable, such as tempered, tinted,low-e, laminated and etc; 8. Good convenience to install and clean.