Product Range
We provide a wide range of aluminum systems for residential and commercial projects, designed for aesthetics, functionality, and durability.
Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
High-Quality Doors, Windows & Curtain Wall Solutions
As a national high-tech enterprise, we specialize in the development and manufacturing of energy-efficient windows, doors, and fire-rated building products.

Residential & Commercial Aluminum Windows and Doors Manufacturers

. Our product range includes standard windows, system windows, and related supporting products, backed by 12 fire-rated window certifications and 1 fire-rated door certification.

With advanced production lines and a professional R&D team, we provide reliable products and services for both residential projects and large-scale engineering projects exceeding 10,000 square meters. Our honors include AAA Credit Supplier, Second-Class Qualification for Building Decoration Engineering, and Preferred Supplier of China Top 500 Real Estate Enterprises (Fire Windows) for three consecutive years.
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Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • 10+
    Industry Experience
  • 30000㎡
    Factory Area
  • 150+
    Technical Personnel
  • 800000+
    Annual Output
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
  • Zhejiang Dongcheng Energy Saving Technology Co., Ltd.
Why Choose Us
  • Customization

    Backed by a professional R&D and engineering team, we provide customized development and production based on drawings and samples to meet diverse project requirements.

  • Cost Advantage

    With our own factory, we manage the entire supply chain from raw materials to finished products, enabling effective cost control and competitive pricing.

  • Quality Assurance

    Equipped with our own laboratory and advanced testing equipment, we implement strict quality control procedures to ensure reliable and consistent product quality.

  • Flexible Manufacturing

    Our manufacturing capabilities allow us to flexibly handle the development and production of complex parts in various shapes, sizes, and materials.

  • Production Capacity

    Our workshop area has expanded from 3,000 to 30,000 square meters, allowing us to ensure stable delivery for large-volume orders while remaining flexible for small and medium-sized batches.

  • Efficient Logistics

    Supported by a strategic location and a well-established logistics network, we ensure efficient export transportation and timely delivery for global shipments.

Where Our Products Are Used
Industry Insights & Updates

Certifications & Honors

With comprehensive certifications and strict quality management, we provide customers with reliable products and dependable project support.