Dongcheng's manual skylight range provides reliable rooftop daylighting and ventilation through a simple, direct-operation mechanism — either a hand-crank drive or a push-rod opening system — that requires no electrical supply and offers maximum operational simplicity with minimal maintenance requirements over the product's service life.
The aluminum alloy frame is lightweight and high-strength, and the weatherproof-grade sealing strip runs the full perimeter of the sash, delivering wind resistance, watertight performance, and sound attenuation equivalent to the electric range. All metal components are corrosion-treated, and the installation is designed to preserve the host roof's existing waterproofing layer intact. The manual skylight is the cost-effective, dependable solution for sunrooms, conventional residential rooftops, warehouse structures, and loft spaces where smart control features are not required.
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.
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