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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
2025 SIRM Certificate
2025 SIRM Certificate
Automotive QMS Certificate
Automotive QMS Certificate
TüV Certificate
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