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Robust Quality System

Our QC team strictly monitors production from raw materials to finished products, ensuring every step meets established standards.

Aluminum Profile Standards

Zhongya complies with international and industry standards including GB5237 for architectural profiles and GB/T26014-2010 for decorative profiles, ensuring standardized production and reliable quality.

Strict Quality Control

Our CNAS-certified lab includes sample prep, precision measurement, composition analysis, mechanical/salt spray/physical testing, door/window performance, chemical analysis, and data processing rooms. We provide aluminum chemical composition, mechanical/physical properties, and raw material testing.

Certifications

We hold ISO, SGS, CE, TüV, SIRIM, and other certifications, ensuring our products meet international standards through strict operations and rigorous norms.

2023 Quality Management System Certificate

2024 EU CE Certification

2024 UKCA Certification

2025 SIRM Certificate

Automotive QMS Certificate

TüV Certificate