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| Q. |
How does the piston in the clamping unit move? |
| A. | hydraulic energy |
| B. | pneumatic energy |
| C. | heat energy |
| D. | suction |
| Answer» A. hydraulic energy | |
| Explanation: there is a clamping unit employed for holding the two halves together and for the opening and closing of the mold. a moving piston is provided which operates the power press. this piston works on hydraulic energy. | |
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