upvc sliding frame Specification: 1.Material: Using "Hongyu" brand upvc sliding profiles. 2.Product colors:White,brown,yellow,wood finished or co-extrusion/laminated/spay/coating any colors upon what you required. 3.Series:Our mainly series products have three-rail sliding series 88A,88,80 and 75,dual-rail slding series 60. 4.Using:For sliding windows,doors and profile frames. 5.The profile has designed to fitted the single galss or double galss. Certificated:Followed ISO9001:2008 standard. Product features: 1.Top quality with the beautiful and elegant appearance. 2.High strength,corrosion resistance,anti-aging performance,sound and heat in solution,strong wind resistance and fine tightness. 3.Usually Durable,above 30-50 years life. 4.Waterproof, fine airproof,fire proof. 5.Earth friendly.