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The arm of the bulldozer can move up and down, each joint of it can move flexibly to form differently.
Fun caroon driver will amuse your baby, the carriage can be jointed to the main body to carry small items,and the rear door can be opened or closed exercising the flexibility of baby's hands.
Rotating car hopper can discharge the building materials conveniently.
The mixer can rotate up and down and discharge the cement, letting kids know the principle of mechanical automation, cultivating their creativity and manipulative ability.