Pipeline Products Specialty Company presents T.D. Williamson. 
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T.D. Williamson

T.D. Williamson (TDW) was established in 1920, originally known as The Petroleum Electric Company. With its corporate office in Tulsa, Oklahoma, with the first manufacturing plant erected in West Tulsa in 1947. TDW now boasts locations on every continent excluding Antarctica with a range of innovative pipeline products.