GMX-A型滅火器壓力表校表儀，具有體積小，操作方便，以氮氣作為動力，可校驗滅火器上各種規格的壓力表。

    The GMX-A Extinguisher Manometer Calibrator is compact and controllable,and as it driven by nitrogen,it can calibrate various kinds of manometers on extinguishers.