Grinding Machines | English | Hydratight
(Oval Manway Seat Grinder) Hydratight (formerly known as Hydratight DL Ricci) provides a variety of portable grinding machines. The Oval Manway Seat Grinder restores corroded, pitted, abraded and leaking manway gasket seat surfaces. The Hand Hole Grinder works to repair existing, worn and leaking hand hole surfaces.