Product Functions and Holding Points                                                                                                    1. Dust, sand, stone, leaves, branches, suspended solids, cigarette and beverage bottles, bolts and nuts, and sprinkler system can be cleaned to avoid dust;2. Equipped with fire hydrant water supply interface, the water supply speed is fast, and the municipal fire fighting along the road can be used at any time;3. It is equipped with ceiling type electric fan, which can rotate left and right, front and back, and is equipped with unpowered start and stop device;4. Humanized design, easy to understand operation workbench.