Concrete Placing Boom Machine is a very important part of in the pump truck, not only to lose in the process of the construction of Concrete, but also the position change of construction time, the Concrete Placing Boom Machine bearing ability put forward high request, if Boom use bad material or assembly process does not reach the designated position, is easy to appear problem, light affects the quality of Concrete construction, serious can cause the arm fracture, causing casualties and severe hidden trouble.
