2007-11-29 2007-11-29 Contact HSI for design and assembly of hydraulic and pneumatic systems. 144674 text/html 1.0 EN Hydraulic Systems Inc HSI Jackson MI Hydraulic Systems Inc on High Street in Jackson, Michigan. 517-787-4033 text EZ-NetTools EZ-NetTools specializes in providing professional custom web site design and ecommerce services that you can easily maintain.