9. 1.2 The organization shall monitor customers' feelings about the degree to which their needs and expectations are met. The organization shall determine the methods for obtaining, monitoring and reviewing this information.

8.6 Mainly monitoring and measuring products. According to the control plan, inspection instructions and other documents, check whether they are implemented according to the documents; In addition, if there are any nonconformities and concession release requirements, they must be signed by the relevant authorized personnel. If the customer's agreement requires the customer's permission, the release documents in Shanghai need the customer's signature.