CANGZHOU HAOLONG CONSTRUCTION MACHINERY CO.,LTD 
Haolong company is professional for the concrete pump pipes and parts.Our company is located in Boerzhuang Industry Zone, Mengcun County, Hebei Province.
MAIN PRODUCTS:
PUMP PIPE AND PARTS: Twin wall pipe and elbow, Harden pipe and casting elbow,ST52 seamless pipe and weld bend, pump reducer,rubber hose and gaskets, wear plate and cutting ring, filter, piston ram, plunger cylinder, mixer shaft, mixer bearing, swing lever, Manual grease pump, Electric grease pump, Hydraulic grease pump, ball socket, upper housing assembly, outer housing, seal kits, Hopper, mixer plate, outrigger pad,main oil pump, transfer cylinder, A10V028 pump, A2FO28/61L pump, magnetic switch, balance valve etc.....