Four wheel trailer feature: Frame length is more than 3 m, contain mass is more than 2T, the frame is slotted welded frame structure, can flexibly turns with the tractor turns and rides smoothly; The trailer has manual brake and hydraulic automatic collision brake system, the height of front trailing arm is adjustable, can be flexibly adjusted according to the height of the back tractor trailer point; The front end of the trailer is equipped with four flip-mechanical support legs, when stops the back mechanical legs hang the trailer up to protect the leaf springs, and the legs turn are to flat while driving. |