... . Horizontal and vertical 4. Plastic heat & cooling mixing SRL-Z series mixing unit is applicable for mixing ,colouring and drying of ... developed by importing ,and absorbing advanced foreign technology, by adopting PLC control,it features high automatic level,good mixing effect,complete ... heating/Auto-rubbing Manual/Pneumatic 4120/4030/4870 12 SRL SERIES HIGH-SPEED MIXING UNIT