pvc profile for any kinds of plastic windows 1)Specifications:60casement,62sliding,70casement,80sliding,88sliding ,60Series Free-style2)Unique formular:No distortion, good insulation, Ant-iaging,Anti-dust,Excellent watertightness and airtightness,guarantee long life.3)Elastic modulus in tension:No less than 3000mpa4)Impact elasticity: No less than 20kilojoule/square meter5)Sofening temperature: No less than 75±26)K-Value of window: 1.80w/square meter7)Window resistance: 5000pa8)Air permeability: 0.1m3 / h.m9)Watertightness: 500pa10)Tensile strength:37.0MpaMore than 15 years experience on Windows Doors,Profiles,guarantee each customer satisfy!