Tian Jin Otr Engineering Inspection Technology Co.ltd is a specialist non-destructive testing house based in Tianjin, focused on inspection of heavy industrial materials and equipment including ship structures, pressure components and offshore installations. The OTR Engineering team is listed as a member organisation on DROPSOnline, the dropped-objects industry community, reflecting an active presence in the offshore and marine inspection sector and providing access to industry guidance on inspection-related safety. Field NDT teams perform magnetic particle inspection on hull and structural welds, dye penetrant examination on selected surface-breaking defects, ultrasonic testing of butt and fillet welds and pressure boundaries, and radiographic examination on a limited basis for critical applications, with technicians qualified under the relevant Chinese national NDT certification scheme. For the marine sector, inspectors also carry out hull ultrasonic thickness gauging using digital UT thickness meters for intermediate and special periodical surveys, ultrasonic hatch cover tightness testing under IACS UR Z17 to support bulk carrier cargo-readiness verifications, and watertight integrity testing of doors, hatches and penetrations under SOLAS II-1 with reporting suitable for both port-state and class surveys. Routine NDT and remote inspection programmes are delivered to ship managers and shipyards for condition monitoring of ageing tonnage, including planned campaigns aligned with five-yearly special survey cycles. The company is recognised as a service supplier by ABS and the China Classification Society, allowing its test certificates and inspection reports to be accepted for statutory and class purposes on vessels calling at Tianjin Xingang and other Bohai Bay terminals.