... contactors 2) automatically control 3)high efficiency 2012 HOSTEST Elecro Connecting Pressure GuageIntroduction It is widely used in petroleum, chemical, metallurgical ... device, junction box(socket), magnetic electric connecting devicceSpecification Product Model Nominal diameterAccuracy gradeContact capacityConnection Screwelecro connecting pressure guageWH-1501501.610M20*1.5About ...