The company has established a dedicated QA/QC team, which strictly implements the three-level quality control process of Incoming Quality Control (IQC), In-Process Quality Control (IPQC) and Final Quality Control (FQC). It conducts standardized and refined management and control over each process in the entire production chain, forming a tight quality control network to ensure stable and reliable product quality.
Incoming Quality Control (IQC)：The QC team verifies the material quality, thickness, physical properties and coating indicators of each batch of incoming materials item by item. Only those that fully meet the project technical requirements can be warehoused and accepted. If any defects affecting production are found, the materials will be returned immediately and the suppliers will be informed synchronously.
In-Process Quality Control (IPQC)：On the basis of regular inspections and random sampling by the QC team, a process self-inspection responsibility system is implemented. Each post is required to conduct full-process registration and traceability for each processed board to ensure that only qualified products can be transferred to the next process.
Final Quality Control (FQC)：Comprehensive inspections are carried out on key indicators such as the dimensional accuracy, appearance quality, position number and protective film integrity of finished products. Only qualified products can be packed.

The company has established a rigorous pre-production verification mechanism. Prior to the mass production of all projects, a full-item first-article inspection must be conducted. The dimensional accuracy, appearance quality and core mechanical properties (including tensile strength, shear strength, bonding strength, etc.) of the first article are verified one by one. Only when all indicators accurately meet the project technical standards can mass production be initiated.
For high-difficulty products such as unitized special-shaped panels, a mandatory pre-assembly process is additionally implemented. A complete set of products must be pre-assembled, and only after confirming that key indicators such as installation accuracy and joint fit are fully up to standard can mass production be arranged, thereby eliminating potential on-site installation risks from the source.

Advanced and Comprehensive Testing Equipment： The company is equipped with a professional laboratory furnished with a complete range of advanced testing instruments and equipment. It can conduct full-dimensional quality verification on raw materials, fasteners and finished panels to ensure that all products meet the requirements of relevant standards.
The core equipment covers multiple testing fields such as mechanics, coating and weather resistance, including: universal testing machine, colorimeter, coating thickness gauge, gloss meter, pencil hardness tester, coating bending machine, neutral salt spray tester, falling ball impact tester.

1.Each panel is equipped with a dedicated identification mark, which includes an exclusive location number and a unique identification code, achieving precise "one item, one code, one location" correspondence.
2. Leveraging the identity markers, a full-process traceability system is established, which supports convenient inspection and logging, effectively assists in precise on-site installation positioning, and enhances assembly efficiency.
3. The uniqueness and authenticity of each identity marker are strictly guaranteed through comprehensive control of the entire process—from code generation and label production to code assignment—effectively preventing duplication or forgery.

A regular product submission and testing mechanism is established. Products are periodically sent to qualified and authoritative third-party testing institutions, ensuring that their performance, quality, and safety fully meet the mandatory requirements of industry standards and current laws and regulations.