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T.D. Williamson, a recognized leader in pipeline equipment and services, delivers safe integrity solutions for onshore and offshore applications worldwide. TDW brings you more than 90 years of extensive experience and expertise in hot tapping & plugging, pipeline cleaning, geometry and integrity inspection, pigging and non-tethered plugging pig technology services for any pressurized pipeline system. TDW partners with you to ensure pipeline service projects are completed safely and on time with a broad range of quality products, services and technical capabilities. TDW is committed to fulfilling your needs by delivering performance-based solutions on time, anywhere in the world.