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  • What to do if the relay valve for the front axle of the car is frozen

    When the relay valve on the front axle of the car is frozen, card friends often choose to use fire roasting, pouring with boiling water, filling alcohol into the air tank, etc., but these are only expedient measures. Improper operation can also...

  • What is the working principle of the car brake system?

    There are generally two types of automobile brake systems. One is hydraulic braking; the other is pneumatic braking. Hydraulic brake is delivered to each brake cylinder by the brake master cylinder with brake fluid as the transmission medium throu...