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As a leading Invisible Frame Windows Factory, we understand that modern architecture demands more than just transparency—it demands the total integration of the exterior landscape with the interior living space. "Invisible" frame systems, often referred to as slim-line or minimalist windows, utilize hidden outer frames that are integrated into the wall structure, leaving only the glass and minimal interlock profiles visible.
This technical whitepaper explores the intersection of high-performance aluminum extrusion, structural glazing techniques, and the global B2B procurement landscape. For architects and real estate developers, choosing the right OEM/ODM exporter is not merely about price; it is about ensuring structural integrity, thermal efficiency (U-Value optimization), and long-term maintenance-free operation.
Utilizing high-strength 6063-T5 aluminum alloys and concealed drainage systems to ensure a sleek finish without compromising on water tightness or wind resistance.
Advanced PA66 nylon thermal break strips paired with triple-glazing or low-E glass options, reaching U-values as low as 0.8 W/m²K for passive house requirements.
Every unit manufactured in our factory adheres to international standards including CE (Europe), AS2047 (Australia), and NFRC/AAMA (North America).
Nanjing Spencer Window Co., Ltd. leverages the unparalleled ecosystem of the Chinese manufacturing sector. With a 10,000 sqm production base, we provide a vertically integrated solution from R&D to final shipment.
Nanjing Spencer Window Co., Ltd. was established in 2013 with a registered capital of RMB 20 million. The company operates a modern production base covering approximately 10,000 square meters. As an integrated enterprise combining research and development, manufacturing, and sales, Spencer specializes in aluminum alloy system doors and windows, offering solutions for both standard and high-end architectural applications.
With an annual production capacity of up to 100,000 square meters, the company’s products are widely used in residential buildings, commercial complexes, and industrial projects. By combining modern design concepts with durable materials and precise engineering, Spencer delivers door and window systems that feature excellent sealing performance, energy efficiency, and long-lasting reliability.
| Region | Certification Requirement | Spencer Factory Fulfillment |
|---|---|---|
| North America | NFRC / AAMA / CSA | Thermal performance testing and hurricane-resistant impact glass configurations. |
| European Union | CE / EN14351 | Strict adherence to energy labels and environmental sustainability standards (EPD). |
| Australia / NZ | AS2047 / AS1288 | Bushfire Attack Level (BAL) ratings and high-velocity wind zone testing. |
| SE Asia | Standard Windproof Design | Specific focus on corrosion resistance for coastal projects in Philippines/Vietnam. |
* Our engineering team provides full shop drawing support and BIM integration for architectural consultants to ensure seamless local site installation.
Creating "Glass Walls" that disappear, perfect for infinity pool vistas and panoramic garden views using our Invisible Frame Sliding Systems.
Optimizing natural light while maintaining extreme soundproofing (up to 45dB) for urban environments with Thermal Break Tilt and Turn Windows.
Enhancing guest experience with sleek Laminated Glass Bifold Windows for rooftop bars and beachfront balconies.
The company places strong emphasis on technological innovation and precision manufacturing. Equipped with advanced production lines and supported by an experienced technical team, Spencer maintains strict quality control throughout every stage of production. From raw material selection to processing and final assembly, each step is carefully managed to ensure high standards in durability, safety, thermal insulation, and soundproofing performance.
Nanjing Spencer Window Co., Ltd. follows the philosophy of “Quality First, Customer Foremost, Integrity-Based.” The company provides comprehensive services covering consultation, customized design, and after-sales support. By integrating innovation with craftsmanship, Spencer strives to create comfortable, energy-efficient, and aesthetically refined living spaces.
Spencer is committed to continuous innovation and service improvement, aiming to become a trusted global partner in the door and window industry while delivering lasting value to its customers.
Sustainable Growth: We are currently developing AI-integrated smart glass solutions that adjust tint based on solar intensity, further reducing the carbon footprint of modern buildings.
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