Nantong Jifeida Nondestructive Testing Co., Ltd. is a specialist inspection firm headquartered in Nantong on the northern bank of the Yangtze River in Jiangsu Province, supporting the dense network of newbuilding shipyards, ship-repair facilities and offshore fabrication sites in the surrounding region. The Jifeida team focuses on inspection services that underpin class survey and shipowner condition-monitoring requirements, applying conventional non-destructive testing techniques and complementary measurement methods to hull structure, hatch covers and ancillary equipment. Standard service lines include ultrasonic hatch cover tightness testing in accordance with IACS UR Z17 for bulk carriers and multipurpose ships, watertight integrity testing of doors, hatches and bulkhead penetrations, and broader non-destructive examination using ultrasonic, magnetic particle and dye penetrant methods on welded joints and structural details. In-water survey support is also provided, enabling routine underwater hull, rudder and propeller examinations to be carried out at anchorage in lieu of drydocking on suitably classed vessels. Reports issued by Jifeida are recognized by classification societies including CCS, ABS, Korean Register and Lloyd's Register, allowing the company to support intermediate surveys, special periodical surveys and Condition Assessment Programmes on bulkers, tankers and containerships trading internationally. With Nantong's strong shipbuilding cluster on its doorstep, Jifeida is well placed to dispatch qualified surveyors and NDT Level II technicians to yards and to vessels alongside in the wider Yangtze estuary region.