W.H.WILKINGSON CO. W.MEDWAY.MASS. vertical pump
| The piston is a simple stem whose weak play allows the pressurization thanks to the viscosity of oil. The screw handle allows closing anti repression because the pump does not have a valve. | |
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W.H.WILKINGSON CO. W.MEDWAY.MASS. vertical pump
| The piston is a simple stem whose weak play allows the pressurization thanks to the viscosity of oil. The screw handle allows closing anti repression because the pump does not have a valve. | |
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