Tianjin Huavia Technical Service Co., Ltd. is a Tianjin-based marine technical services company providing hull, structural and underwater inspection support to merchant vessels calling at Tianjin Xingang and the wider Bohai Bay area. The Huavia team focuses on the survey-support scope required by IACS classification societies and Chinese flag-state authorities for routine and renewal surveys of bulk carriers, container ships, tankers and general cargo vessels. Engineers perform ultrasonic hatch cover tightness testing under IACS UR Z17 to support cargo-readiness verifications for grain, coal, ore and other dry bulk cargoes, watertight integrity testing of weathertight doors, hatches and penetrations under SOLAS II-1, and hull ultrasonic thickness gauging using digital UT meters for intermediate, special periodical and Condition Assessment Programme surveys on ageing tonnage. Non-destructive testing services include magnetic particle, dye penetrant and ultrasonic examination on hull welds, structural details and pressure components, while in-water hull inspections in lieu of drydocking are coordinated with diving subcontractors and reported in formats accepted for class purposes. Tianjin Huavia field staff also deliver NDT and remote inspection programmes for condition monitoring of structural members and mooring components, supporting planned maintenance campaigns aligned with five-yearly special survey cycles. Mobilisation to anchorages, terminals and shipyards across the Bohai Bay area is offered on a 24-hour basis. The company is recognised as a service supplier by ABS, the China Classification Society and DNV, allowing its inspection certificates and reports to be accepted by attending surveyors for statutory and class verifications on a wide range of merchant tonnage operating at northern Chinese ports.