The truck flows play the indispensable role as the freight traffic tool in the transportation, recently US's truck engineer in order to enhanced as many as possible of the load-carrying capacity of the truck , they made the big 
trucks length surpass 80 meter.This kind of truck cab is especially spacious, in front of the steering wheel has piled up with each kind of control button.
Watches from the distant place, when truck curve looks just like a row small freight vehicle.
