... , mining and tunnel, spraying mixed vegetation for slope of road and railway, grouting for wall, pumping fine aggregate ... easier to operation, better flexibility, and widely range of applicationsLPS-7 wet mix concrete pumping spraying machine machine ... ParameterUnitData Productivitym3/h7 Max. particle sizemm15 Fineness modulus of aggregate ≥2.5 Dosage of liquid accelerator%3.5 Hose diametermm51 (2″) ...