This document is Part 7 of T/CNEA103 "Non-destructive testing of pressurized water reactor pressure components". This document consists of 9 chapters in total, of which Chapters 1-3 are normative provisions, and Chapters 4-9 are Part 7 of non-destructive testing of pressurized water reactor pressure components: the main content of visual inspection. The main contents include: general requirements, visual inspection equipment and equipment, visual inspection methods, inspection process, evaluation and records, and inspection reports.