r sand infilling, Place the rubber granules piles on the lawn on different spots evenly at a distance of 4m from each other, then spread them evenly on the lawn(the quantity of sand depends on the pile height of the turf). Afterwards, use the combing machine to sweep the sand into the fibers and to comb up the fibers. Do this process once longitudinally and transversely.Brushing: to brush the grass in the vertical and horizontal one time by the grass-brushing machineCheck and Acceptance: Inspec