the system has to meet the needs of street vendors to serve earth downloading automatically the dealer shipment of goods, at the same time, enables the mercato also from above the truck, without unloading the goods, as in conventional truck.the system consists of four cylinder engines and lower the bar fridge rose on a sled with wheels, and two cylinder pushing it out and retract.the phase of the mission is as follows: the four cylinders lift the fridge on the sled. the two cylinders force him out. the four cylinders lowers the fridge in the market position.the contrary, in return, in figure see section with two of the four cylinders to raise the fridge and a push cylinder.
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