The seller shall press the inquiry, data sheet, the provisions of this project and the relevant standards for testing and testing. Test items should be made in the data sheet or contract. When the contract provides, the seller shall provide the buyer with the following inspection and test reports: (1) Material inspection certificate; (2) Nondestructive inspection report; (3) Dimensional inspection report; (4) Dynamic balance test report; 5) hydraulic test report; (6) performance and mechanical operation test report; (7) cavitation performance test report; (8) other test and test report.