... running. 4.easy operation, JZC250 Concrete MixerFree-fall JZC series concrete mixer is the reversal mixer machines, the mixer canister is drove by the ... It can mix the plastic and the half dry hard concrete. And it is the ideal machines for construction fields, ... project and all kinds of concrete parts factory. JZC series mixer includes JZC250, 350, 500, 750 and JZM350. All the machines are portable ...