Engineering Series 19014 – Enjoy the build and explore the engineering brilliance of Mould King Concrete Pump Truck 19014 building block kit. Unlock interesting field of construction engineering vehicles and features with this heavy-duty truck model. | MOC Truck Construction Kit – Like a real heavy-duty pump truck, its body gear drives big arm lifting pneumatic accessories, and the arm can be folding /stretching multi-layer Z-folding boom. Four legs lifting supported rod legs to keep balance, and chassis supports 360