... 30Mpa 3.Test before delivery 4. Details about CNG high pressure pipes CHG tube: resist high ... tough,advanced technology1. Main use: widely used in CNG fuel-auto and double fuel-auto, auto-braking ... high pressure tube is the pipeline of connecting reducer and gas cylinder.Used to connect the steel ... filling port, high pressure solenoid valve, and pressure reducer, there is a rubber pipe on the surface ...