Hydraulic Concrete Mixer With Loading Hopper 1.Pass ISO9001 2.High efficiency 3.Good price 4.Easy to operate and maintain Hydraulic Concrete Mixer With Loading Hopper Product Introduction:Hydraulic Concrete Mixer With Loading Hopper:DONGKUN MX series concrete mixers are gravity type reverse turning discharging mixers with double cone, the mixing tube is driven by ring gear, during its operation, ...