Traceability of product quality requires cross-checking against specific product and batch information. When purchasing and using products, it is recommended to retain product labels, specifications, batch information, and records of delivery and acceptance.

If you have any quality concerns, please provide the product name, specifications, lot number, receipt date, conditions of use, and relevant photos to facilitate verification of the corresponding records.

For requirements related to certification or testing, verify the issuing entity, scope of application, and validity status of the certificate or report; documentation for different products or batches should not be intermixed.