How should a new commercial electric pressure cooker be inspected on arrival?

Please verify the following points and require itemized written supplier responses:（commercial electric pressure cooker pressure-cooker-acceptance） Verify model, capacity, nameplate, accessories, manuals and warranty documents, and inspect the body, lid, seals, valves and inner pot for damage. Run a water test for pressure build-up and release before commercial use. Define capacity, accuracy, materials and operating environment before requesting quotes on a uniform basis. Request specification sheets, test reports, certificates, maintenance manuals and spare-part lists. During acceptance, verify appearance, dimensions, functions, safety protection and packaging, and keep test records. Do not compare unit price alone; include customization, freight, spare parts, after-sales support and downtime risk. Keep written records of inquiries, confirmations, FAT, acceptance and warranty commitments.