Pressure Gauge, Manometer, CNG Pressure Gauge manufacturer / supplier in China, offering 100mm Electric Contact Pressure Gauge Manometer with Diaphragm Clamp Type Ss316L Material, Dial Size 4inch 100mm 100 Mbar Low Pressure Gauge Manometer Case Silicone Oil Filled, Dial Size 3inch 75mm 10kpa Bellows Pressure Gauge Manometer Case Chrome Steel Bottom and so on.