When you purchase upvc profile double hung  window 002-2, you purchase directly from the factory. PVC double hung windows combine classic appearance with modern performance. Unlike casement windows, they do not swing inward or outward, saving interior and exterior space. The dual movable sashes enhance air circulation and safety. Made from durable PVC, these windows resist rot, rust, and fading while providing excellent thermal and acoustic insulation. Their smooth surface allows easy cleaning and minimal maintenance throughout long-term use. series: 82 series PVC color : white opening style: Double Hung Glass: 3mm+12A+3mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.21 Visible Transmittance: 0.41 Air Leakage: 0.15

Kdsbuilding is a comprehensive company integrating the development, production and sales of aluminum alloy decorative doors and windows

KDSBUILDING supply factory direct sale upvc sliding window 012. PVC sliding windows are ideal for large openings, offering wide views and easy operation. The PVC frame provides excellent resistance to moisture and temperature changes, ensuring stable performance over time. These windows combine low maintenance requirements with reliable insulation and modern architectural style. series: 60 series PVC opening style: Top sliding and bottom fixed Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  Yes Window Screen :  With removable screen

KDSBUILDING supply factory direct sale upvc sliding window 004. PVC sliding windows provide a practical ventilation solution with minimal maintenance. The sliding mechanism ensures easy operation, while the PVC frame maintains its shape and color over time. These windows are well-suited for coastal areas and humid environments due to their strong weather resistance. series: 60 series PVC opening style:  sliding  Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  With removable screen Grille design : Yes

KDSBUILDING supply factory direct sale upvc sliding window 003. Designed for long-term reliability, PVC sliding windows offer stable performance and modern appearance. The multi-track design allows flexible opening options, while the insulated PVC profiles enhance energy efficiency. These windows are ideal for apartments, offices, and large-scale housing projects. series: 60 series PVC opening style:  sliding  Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  With removable screen Grille design : Yes

KDSBUILDING supply factory direct sale upvc casement window 32. Designed for superior performance, PVC casement windows open fully to maximize airflow and natural light. The multi-chamber PVC frame enhances thermal efficiency, while secure hardware ensures safety. Resistant to moisture, corrosion, and UV exposure, these windows maintain stable performance and appearance over time. series: 60 series PVC opening style:  casement and fixed  Color: wood grain Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  no Grille design : no

KDSBUILDING supply factory direct sale upvc casement window 6. Featuring a practical side-hinged design, PVC casement windows provide full opening for effective ventilation. The PVC frame delivers excellent insulation and weather resistance, while multi-point locking systems enhance security. These windows are easy to clean, cost-effective, and suitable for modern residential buildings. series: 60 series PVC opening style:  casement Color: white Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  With  screen Grille design : no