最后的性与爱,韩国三级HD激情,高清性色生活片

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  • P53B machine sealing system
    Design pressure: ≤5.0 MPa.G
    Design temperature: ≤250C
    Volume 12L/20L
    Standard: API682
    Functional use
    It is used in the centrifugal pump's toxic, flammable and explosive, environment-contaminated media flushing scheme. The medium can be directly discharged to the environment. The circulating fluid takes away the heat of the mechanical seal operation, and the lubricating machine seals the friction pair to extend the mechanical seal life.
     
    P53B machine sealing system
    Design pressure: ≤5.0 MPa.G
    Design temperature: ≤250C
    Volume 12L/20L
    Standard: API682
    Functional use
    It is used in the centrifugal pump's toxic, flammable and explosive, environment-contaminated media flushing scheme. The medium can be directly discharged to the environment. The circulating fluid takes away the heat of the mechanical seal operation, and the lubricating machine seals the friction pair to extend the mechanical seal life.
    最后的性与爱,韩国三级HD激情,高清性色生活片