Aluminum alloy door, window and curtain wall auxiliary materials
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Aluminum alloy door, window and curtain wall auxiliary materials

Dongcheng supplies a complete range of specialist hardware and auxiliary materials engineered specifically for aluminum alloy doors, windows, sunrooms, and curtain wall systems. The product line covers the full assembly bill of materials: multi-point locking hardware, stainless and galvanized hinges, silent roller sets, floor springs, pull handles, sealing strips, expanding foam sealants, structural connectors, and glazing accessories.

Every accessory in the range is manufactured from materials selected for compatibility with aluminum alloy substrates — preventing galvanic corrosion at the contact interface — and is precision-dimensioned for tight tolerance fits that ensure smooth operation, effective sealing, and long-term structural security. Surface treatments on metal hardware components match the corrosion-resistance and finish durability requirements of outdoor and high-humidity installation environments.

The accessories catalogue is aligned with Dongcheng's primary door, window, and curtain wall product ranges, with specification matching across all standard profile series. Complete kitting and supply for full project requirements is available, simplifying procurement and guaranteeing component compatibility throughout the assembly.

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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.

Zhejiang Dongcheng Energy Saving Technology Co., Ltd.

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