Dynamic Sealing Technologies, Inc. (DSTI) Web: http://www.dsti.com AddressDynamic Sealing Technologies13829 Jay Street NWAndover, MN 55304United States Telephone: +17637863758About usWe are a global leader specializing in the design and manufacturing of rotary union (swivel joint) products used to transfer hydraulic oil, chemicals, water, air, and a variety of other liquids and gases for critical rotating applications.