ZCSUNG system door & window Achieves International Dual Certification, Defines New Benchmark for System Doors and Windows with Hardcore Strength

Februmry 1, 2025, ZCSUNG system door & window officially passed the dual international certifications from the Insulating Glass Certification Council (IGCC) and the National Fenestration Rating Council (NFRC) in the United States, becoming one of the few domestic brands in the system doors and windows sector to simultaneously obtain these two authoritative certifications. This groundbreaking achievement not only injects strong momentum into ZCSUNG system door & window's globalization strategy but also provides high-quality door and window solutions for global users with the strength of "Made in China with Intelligence."

**International Certifications Enhance Quality Recognition Worldwide**

The IGCC certification, recognized as a global authority in the insulating glass industry, imposes extremely stringent requirements on product sealing, durability, and energy-saving performance. The NFRC certification, renowned for its precise energy performance rating system, covers core indicators such as thermal conductivity and solar heat gain coefficient. ZCSUNG system door & window successfully passed both certifications in one go, thanks to its meticulous control over the entire supply chain, from material selection to production processes. For instance, its use of LOW-E glass and multi-cavity structural profiles, combined with German-imported sealing strips, effectively enhances the insulation and soundproofing performance of the entire window, creating a comfortable and quiet living environment for users.

**Research and Development Drive Innovation, Patent Technologies Build Core Competitiveness**

As a national high-tech enterprise and a demonstration enterprise for intelligent manufacturing of system doors and windows, ZCSUNG system door & window has assembled a professional team of 45 domestic and foreign R&D engineers, establishing an innovation system covering material science, acoustics, thermodynamics, and other fields. To date, ZCSUNG system door & window has accumulated nearly 200 national patents, with a significant proportion being invention patents. Taking soundproofing technology as an example, its unique "high-precision multi-cavity + wool strip sound insulation" design significantly reduces external noise interference, creating a quiet indoor space for users.

**Smart Factory Empowers, Creates an Ultimate Quality Control System**

At its headquarters in Huangshan and production base in Wuhu, ZCSUNG system door & window has introduced German Stürtz micrometer-level intelligent production lines, horizontal spray coating lines, and glass deep processing lines, achieving highly automated production of key window processes. Through a strict "one window, one adjustment" testing standard, each door and window undergoes multiple performance tests, including airtightness, watertightness, and wind pressure resistance, ensuring that 100% of the products leaving the factory meet high-quality standards. This quality control system provides a solid guarantee for the stable performance of ZCSUNG system door & window.

**Full-Cycle Service Guarantee, Reshapes Industry Service Standards**

ZCSUNG system door & window offers a "Five-Star Installation Service," implementing full-process control from measurement, installation, to acceptance through 18 standardized procedures and high-quality auxiliary materials. Its industry-leading "15-Year Extended Warranty" policy, underwritten by the People's Insurance Company of China, provides lifelong maintenance guarantees for users. Additionally, ZCSUNG system door & window has passed the system door and window certification from the China Academy of Building Research, becoming one of the first domestic brands to obtain this authoritative certification, offering consumers an authoritative basis for selection.

**Leading Industry Upgrades, Empowering Beautiful Living Environments**

From international certifications to technological barriers, from intelligent manufacturing to service upgrades, ZCSUNG system door & window is leading industry upgrades with comprehensive strength. As a leading brand in high-end energy-saving system doors and windows, ZCSUNG consistently empowers beautiful living environments with innovative technologies, creating safe, comfortable, and green quality lives for global users.

In the future, ZCSUNG system door & window will continue to deepen its presence in the system doors and windows sector, driving the industry towards higher standards with exceptional quality and attentive service.