... CE & ISO9001:2000 certified Concrete MixerConcrete Mixer, Batch Mixer, Twin Shaft Concrete Mixer, Ready-mix Concrete MixerJS4000 Concrete MixerKey ... , easy operationTransmission System: planetary gear, twin shaft homocentric working.Lubrication System: advanced centralized oil lubrication ... mm4220x2620x1910 mm4300x2680x1910 mm4450x3050x2380 mm Double Horizontal Axles Forced Concrete Mixer