... 3. Outlet32mm Inlet38mm High Pressure Cement Grouting PumpRG7O &RG90 Piston High Pressure Grouting Machine is a single piston double ... , which is a universal high-pressure grouting pump and is used for grouting in soil, earth foundation stabilization, waterproofing ... , bridge decks , deep well casing, slope line grouting,etc,Features:Single piston double-actingOil hydraulic driveCompact structure with ...