... , Asphalt Tank, Asphalt Pumping and Spraying System, Heating System, Hydraulic Circuit, Pneumatic Circuit, Auto control System and Operation Panel Ⅱ,Features 1, Main ... and spraying nozzles not to be blocked.h) Control System adopts modular design, which is very convenient to maintain ... and troubleshooting.i) It is equipped with standby control system.j) It can ensure machine to work normally when ...