45Mn2 seamless boom pipe: 1.Name:Concrete Pump Pipe 2.Material:ST52 3.25000-30000cbm concrete 45Mn2 seamless boom pipe:1.Profile and Products: Our company is one of the leading wear-resisting concrete pump pipe manufactures in Asia, being in this filed for over 10 years. Our products include delivery pipes, elbows, reducers, couplings, rubber hoses, cleaning ball and so on.2.Concrete Pump ...