Pressure Gauges, Tire Gauges, Temperature Gauges manufacturer / supplier in China, offering 40mm 50mm 60mm NPT or Bsp Thread 2bar Liquid-Filled Pressure Gauge with Back or Bottom Connection, High-Quality 60psi General Pressure Gauge for Food Industry Back Connection Manometer, 25mm 1.6MPa Stainless Steel Mini Air Pressure Gauges Back Mounting and so on.