This article focuses on the theme of "Long-Term Dimensional Stability of Stev Multi-Layer Plywood.", starting from the four links of material selection, system construction, on-site construction and acceptance, and sorting out the key points, parameters and inspection items that can be directly used in the project for reference by the design, procurement and construction teams.

1. Material standards and system standards should be viewed separately

Panels, keels, filling materials and auxiliary materials respectively comply with corresponding product standards, while the overall performance of ceilings and partitions is certified by system standards or system test reports. Procurement documents, technical bids and on-site acceptance should reference the same standard version and test items to avoid inconsistencies between reports and supplies.

2. Comparison of test items

3. Report consistency check

Check the standard number, testing agency, report validity period and product model, and check whether the product name, specifications, thickness and structure are consistent with the bid. Keep original documents, QR codes and official website query records, and promptly re-inspect if the supply batch is inconsistent with the sealed sample.

4. Bidding and acceptance checklist

• Establish an index of material certificates and test reports, and respond to the bidding technical parameters item by item.
• On-site random inspection of specifications, thickness, galvanized layer and appearance.
• Keep sampling, re-inspection and acceptance records.
• Resubmit the changed materials for testing and confirmation.

The value of standards and certification lies in forming a complete chain of evidence. Only when materials, reports, samples and on-site construction correspond to each other can the project pass the review and acceptance smoothly.