A. Specification. 1. Frame: PVC profile 2. Hardware: Top quality hardware 3. Glazing: Double glazing or single glazing 4. Color: White, or other color you required 5. Opening way: Single hunge
B. Performance 1. Water tightness: ≥ 250, CN standard: GB7108-86-III 2. Air tightness: <1.5, CN standard: GB7108-86II 3. Serviceability wind press: +- 3000pa, CN standard: GB7108-86II 4. Heat-preservation: Heat transfer coefficient K≤ 3.5, CN standard: GB7108-86III 5. Noise reduction: 32 dB noise can be reduced by it, CN standard: GB7108-87V