Manual car wash and computer car wash machine First, the cleaning effect of automatic computer car washing machine depends on the rationality of computer program design. Manual car washing is light and flexible, but there are two defects is hard injury, one is that the chassis can not be cleaned, after all, the bottom of the chassis, no matter how flexible the hand, it can not be cleaned, the second is a little higher roof can not be cleaned, after all, the height of the person is limited, can not be swept from above like the automatic car washing machine. As the saying goes: "bad car first rotten bottom, love the car love in the end", the chassis is the fragile part of the car, is the need to care for, most people do not really realize this, out of sight is net, in fact, when you lift the car to see the chassis, you will understand why there is a feeling of heartache, so we can find a car wash to wash the chassis, If there is no nearby, it is necessary to regularly take some meas…