Pressure Gauge, Manometer, CNG Pressure Gauge manufacturer / supplier in China, offering 4.5 Inch 200psi Safety Type Phenolic Case Pressure Gauge with Oil, 2" 50mm Stainless Steel Back Brass Liquid Filled Pressure Gauge with Flange, 4 Inch 100mm Half Stainless Steel Bottom Liquid Filled Pressure Gauge and so on.