Zhoushan Youlian Maritime Technology Co., Ltd is a Zhoushan-based marine service contractor delivering safety, structural and pressure equipment work to commercial shipping calling at one of China's busiest ship repair and bunkering hubs. The firm holds service supplier recognition from China Classification Society, ABS, Bureau Veritas, DNV and Korean Register, an approval set that gives its technicians access to a broad cross-section of internationally trading tonnage. Service activity covers life-saving appliance and fire-fighting equipment programmes including periodical LSA testing, lifeboat, rescue boat and liferaft servicing, fire extinguisher recharge, fire hose and hydrant testing, overhaul of breathing apparatus such as EEBD and SCBA sets and inspection of immersion suits and lifejackets to SOLAS requirements. Zhoushan Youlian also undertakes ultrasonic hatch cover tightness testing, watertight integrity testing of bulkheads, doors and deck closures, underwater inspection in lieu of drydocking carried out by trained dive teams, pressure vessel inspection of boilers and air receivers and a programme of non-destructive testing and remote inspection on welds, structural details and machinery components. Working from Zhoushan gives the team practical access to the cluster of major repair yards, anchorages and bunkering areas of the East China Sea, where vessels frequently combine multiple survey items during short stays. Procedures follow SOLAS, the LSA Code and IACS unified requirements, with equipment calibration and personnel qualifications maintained in line with the approving societies' expectations. Zhoushan Youlian coordinates LSA, fire, tightness, pressure equipment, NDT and underwater attendances within a single mobilisation when survey programmes allow, helping reduce port-stay overheads at the busy Zhoushan repair and bunkering hubs. Records of LSA test results, recharged fire-fighting units, tightness test pressures, NDT findings, pressure test data and dive logs are retained for traceability, with reports released in English where required.