Automatic double side sticker labelling machine for square round flat bottles Main characters: 1. This machine controlled by PLC system and use touch-screen control operating system. 2. Operation is stable and high-speed. 3. Synchonization chain mechanism ensure labeling smooth and precise Calibration. 4. Adjusting screw rod can suppress bottle body move accurately . 5. Transparent label can be sticked without bubble and adhesive label without wrinkle