... ,4M3,5M3,6M3,7M3,8M3,9M3,10M3,12M3,14M3,16M32. concrete mixer truck drive type: 4x2,4x4,6x4, 6x6, 8x4, 4 ... *2, 6*4, 8*4, 6*6, 4*43. concrete mixer truck hand drive type: left hand drive , right hand ... drive 4. Ensure the hydraulic oil clean. When concrete mixing truck works in harshenvironment,we must prevent sewage sediment ...