Senda Steel Plate Thickness Measurement Co., Ltd.

Senda Steel Plate Thickness Measurement is a Shanghai-based inspection contractor specialising in hull ultrasonic thickness gauging and complementary tightness testing for commercial shipping using the ports of the Yangtze Delta. The firm holds service supplier recognition from DNV, ABS, Bureau Veritas, Korean Register and RINA, an approval set that gives its technicians access to a wide range of vessels operating under major class regimes. Core activity is the ultrasonic measurement of shell plating, deck plating, internal stiffeners, tank boundaries and other critical members in support of intermediate, renewal and damage surveys, with reports prepared in formats accepted by attending class surveyors and steel renewal locations clearly indexed for shipyard planning. Senda also undertakes ultrasonic hatch cover tightness testing for bulk carriers and general cargo ships, watertight integrity testing of bulkheads and deck closures, and underwater inspection in lieu of drydocking for suitable tonnage. Working from Shanghai gives the team convenient access to the deep-water terminals of Yangshan and Waigaoqiao, the anchorages of the Yangtze estuary and the repair yards of the surrounding region. Procedures follow current IACS unified requirements for close-up survey and thickness gauging on bulk carriers, oil tankers and other vessels within the enhanced survey programme, while equipment calibration and operator qualifications are maintained to the standards expected by each approving society. Senda coordinates gauging, tightness and underwater attendances with class surveyors and shipyard planners so related survey items can be closed out within a single mobilisation where the programme allows. Records of measurements, acceptance criteria and dive logs are retained for traceability, and reports are released in English where required for international clients managing enhanced survey items in mixed-flag fleets across the Yangtze Delta.