Nantong Fengshun Shipping Machinery is a Nantong-based marine engineering company supporting commercial shipping along the lower Yangtze and the coast of Jiangsu. The firm holds service supplier recognition from ABS, allowing its technicians to perform attendances and testing that feed directly into classification survey records for vessels under that society. Activity is concentrated on pressure vessel inspection covering boilers, air receivers, heat exchangers and other shipboard pressure equipment, including periodical hydrostatic and pneumatic testing and the supporting non-destructive examination required to keep certificates current. Nantong Fengshun also undertakes underwater inspection in lieu of drydocking, providing diver-led visual examination and video documentation accepted by class as a substitute for selected bottom survey items when hull condition permits. Working from Nantong gives convenient access to the shipbuilding and repair facilities of the lower Yangtze, the deep-water anchorages used by ships preparing for cargo operations and the routes leading to Shanghai and the East China Sea. Procedures are written in accordance with relevant IACS unified requirements and ABS rules for pressure equipment and in-water survey, while equipment calibration and personnel qualifications are maintained to support traceable, audit-ready reports. By combining pressure vessel work and underwater attendances within a single approved provider, the team helps owners and superintendents close out related survey items in a coordinated manner during short port stays. Nantong Fengshun schedules attendances in coordination with attending class surveyors and shipyard planners to keep inspection slots aligned with vessel operating programmes. Records of pressure tests, NDT findings and dive logs are retained for traceability, and reports are released in English where required for international clients running mixed-flag fleets through the Yangtze ports.