High Purity Tubing is an indispensable part of diesel engine fuel system. The main function of 100000Psi Ultra High Pressure Tubing is to deliver the high pressure fuel generated by the high pressure pump to the fuel injector for fuel injection. The high pressure pump is responsible for compressing the low pressure oil to reach the high pressure state, while Ultra High Purity Tubing delivers the high pressure fuel from the high pressure pump to the fuel injector. In this process, Ultra High Purity Tubings need to withstand very high pressure, so its quality and stability are very important.