Aluminum Alloy Inward Top-Hung Window

The inward top-hung aluminum alloy window tilts the sash into the interior space from the top edge, creating a protected ventilation slot at the head of the window that delivers gentle, diffused airflow without exposing the occupants to direct wind or admitting rain through the opening.

The high-strength aluminum profile and multi-layer sealing construction provide excellent thermal insulation and acoustic attenuation when the window is in the closed position. The inward tilt geometry keeps the exterior glass surface accessible from inside for safe, convenient cleaning without any exterior access requirement.

The combination of safe ventilation geometry, ease of maintenance, and effective sealed performance when closed makes this window the standard choice for children's bedrooms, home offices, bathrooms, and any interior space where occupant safety and maintenance convenience are the primary considerations. The product is equally suitable for residential and light-commercial applications across a broad range of building types.

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About Dongcheng

Located in the High-tech Industrial Park of Wuxing District, Huzhou, Zhejiang, China, Zhejiang Dongcheng Energy Saving Technology Co., Ltd. is a professional manufacturer specializing in aluminum energy-efficient doors and windows, fire-rated doors and windows, curtain wall systems, railings, shading systems, and skylights. Integrating R&D, design, production, installation, and after-sales service, we provide complete solutions for a wide range of building applications.

With advanced production equipment, a well-established management system, and an experienced professional team, we are committed to delivering reliable products and consistent quality. Operating in accordance with the ISO9000 quality management system, we implement standardized control throughout the production process to ensure that our products meet relevant standards and project requirements.

Driven by technology and innovation, we continuously improve our products and services to better serve the market. We also place great importance on safety management, maintaining strict supervision throughout project execution to ensure safe, stable, and reliable delivery.

Guided by the principles of integrity, quality, and service, we are committed to providing cost-effective products and dependable support, and we look forward to building long-term partnerships with customers worldwide.