... Thread: Brass 2:Case: Carbon steel, engineering plastics 3: pressure gauge for oxygen canister OXYGEN PRESSURE GUAGEFeatures:Oxygen pressure ... specification7.Temperature:-10~70°C8.Certification:ISO9001:20089.Dial plate:Single and dual scale (psi, kpa, mpa, bar, kg/ ... :In the measurement instruments, shall not exceed the load measurement limit 3/4. 50mm oxygen pressure gauge for oxygen canister