... Co., Ltd. This machine is mainly for Microsurfacing construction on prevention and maintenance project of high grade road, also ... replaceable filter core.(3).The control calculates: Electromagnetism valve on control desk, Counting valve, digital flow meter.(4).Pumps: The high ... Spray pipelines: open/close Operate by control desk; adjustable valve, whole breadth spray by truck.(6).Flexible hose: Two ...