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Folding Door

Folding Door

The aluminum folding door is constructed from multiple leaf panels connected by specialist anti-corrosion, wear-resistant hinges that enable the assembly to fold compactly to one or both sides of the opening, achieving the maximum possible clear passage width — equivalent to the full opening dimension — when fully open.

Panels can be specified with tempered glass infill for visual transparency, solid aluminum composite infill for privacy and acoustic performance, or a combination of both. When closed, purpose-designed sealing gaskets run the full perimeter of each leaf joint and the outer frame contact, providing effective sound attenuation, draught exclusion, and waterproofing comparable to a single-panel door.

The lightweight aluminum alloy profile construction minimizes the panel weight that each hinge must carry, extending hardware life and maintaining smooth, low-effort operation under frequent use. The folding door is widely specified for balcony-to-living-room connections, retail shopfronts, open-plan office partitions, villa courtyard enclosures, and any installation where transforming a boundary between open and closed states is a functional or experiential design goal.

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About Dongcheng

Zhejiang Dongcheng Energy Saving Technology Co., Ltd. is a professional manufacturer integrating R&D, design, production, installation, and after-sales service, specializing in aluminum energy-efficient doors and windows, fire-rated doors and windows, and curtain wall systems. Aluminum Folding Door Company in China.

Our main products include aluminum energy-efficient doors and windows, fire-rated doors and windows, railings, shading systems, skylights, and related products for a wide range of building applications. As Aluminum Folding Door Suppliers. Supported by advanced production equipment, a well-established management system, and an experienced professional team, we are committed to delivering reliable quality and consistent performance.

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 continue to strengthen our technical capabilities and develop new products to better serve the market.

Guided by the principles of integrity, quality, and service, we are committed to providing cost-effective products and dependable support to our customers. We also place great importance on safety management, maintaining strict supervision throughout project execution to ensure safe and reliable delivery. Dongcheng sincerely welcomes customers and partners from around the world to visit us and build long-term cooperation together.

Zhejiang Dongcheng Energy Saving Technology Co., Ltd.

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