• Flexibility and hosing test for small water tight hatch cover(water tight door and window).

    水密舱口(水密)启闭灵活性、冲检查。

    youdao

  • Flexibility and hosing test for small watertight hatch cover (water tight door and window).

    水密舱口(水密)启闭灵活性、冲检查。

    youdao

  • Flexibility and hosing test for small watertight hatch cover (water tight door and window).

    水密舱口(水密)启闭灵活性、冲检查。

    youdao

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