system window is a fully integrated window solution where the frame, glazing, hardware, and sealing components are all engineered to work together for optimal performance. Unlike traditional windows assembled from separate parts, system windows are precision-designed for superior energy efficiency, air and water tightness, sound insulation, and structural strength. Commonly made from materials like aluminum or uPVC, they offer modern aesthetics, reliable durability, and are often certified to meet international standards such as NFRC or CE. System windows are ideal for both residential and commercial buildings, ensuring consistent quality, easier installation, and long-term value.

An aluminum double-hung window features two sashes that slide vertically, allowing for easy ventilation from the top, bottom, or both. The aluminum frame is durable and resistant to rust, making it ideal for various weather conditions. Additionally, these windows are low-maintenance and offer a sleek, modern aesthetic. They often come with energy-efficient glass options and can be customized with different finishes to complement any architectural style. series: 83 series thermal break opening style: Double Hung and Inward Tilt Glass: 5mm+9A+5mm clear tempered glass Color: white Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

1. High waterproof performance: Aluminum alloy casement window using high-quality sealing materials, so that it has a good waterproof effect, can effectively prevent rain infiltration. 2. Heat insulation and sound insulation: Aluminum casement window is composed of a variety of materials, which can isolate the temperature difference between indoor and outdoor, ensure that the indoor temperature is appropriate, and can also be soundproofed to reduce indoor noise. 3. Beautiful appearance: Aluminum alloy material can be designed into various shapes, very flexible, beautiful appearance, can increase the overall beauty of the building. 4. Low maintenance cost: Aluminum alloy casement window has high corrosion resistance, low maintenance cost and long life. 5. Safe and reliable: Aluminum alloy casement window adopts thicker tempered glass, which can resist impact and has high safety. 6.Parameter : U-Factor  ≤ 0.3 , SHGC ≤ 0.23 , Sound Insulation ≤ 36 db , Water Tightness ≥ 450 pa , Wind Resistance ≥ 4500 pa , Air Tightness ≤ 0.4 m3(㎡.h)

Aluminum casement windows combine sleek design with superior durability, offering excellent ventilation and unobstructed views. Their strong aluminum frames resist corrosion and deformation, making them ideal for both residential and commercial buildings. series: 103 series thermal break glazing: 5mm+9A+5mm clear tempered U factor: lower than 0.3 SHGC: lower than 0.23

The Aluminum Casement Window from Xiamen KDSBuilding combines modern aesthetics, smooth operation, and excellent thermal performance, making it an ideal choice for contemporary residential and commercial projects. Manufactured with high-quality thermal break aluminum profiles and double-glazed insulated glass units, it provides outstanding energy efficiency, effective sound insulation, and enhanced condensation resistance. The side-hinged casement design allows the sash to open outward or inward, depending on the configuration, ensuring flexible ventilation, easy operation, and a secure, comfortable indoor environment.

Aluminum sliding window with black color. Customized RAL colour is available With thermal break good insulation. With american style handle Double glass good energy saving and  Noise proof Smooth sliding panel easy opening

Aluminum double hung windows feature two operable sashes that slide vertically, allowing flexible ventilation from the top or bottom. Built with durable aluminum profiles, they provide excellent weather resistance, smooth operation, and a clean, modern appearance suitable for residential and commercial buildings. series: 72 series thermal break opening style: Double Hung and Inward Tilt Glass: 5mm+9A+5mm clear tempered glass Color: white Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.35 SHGC ≤ 0.25

An aluminum double hung window offers classic functionality combined with modern material strength. The balanced sash system ensures easy opening and closing, while aluminum frames deliver long-term durability and low maintenance. This window type is ideal for projects requiring ventilation control and a timeless design. series: 83 series thermal break opening style: Double Hung and Inward Tilt Glass: 5mm+9A+5mm clear tempered glass Color: white Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23