... 3.ISO9000,ISO90001,14000,CEmarks 4,Economic investment JS-750 Compulsory Twin-Shaft MixerThis Mixer can force mix plasticity, low plasticity, rigid ... 2.Low maintenance3.ISO9000,ISO90001,14000,CEmarks4,Economic investment Main techonogy parameters of Concrete Mixer JS-500: 1.Model:JS-500 2 ...