external pump gear 外部泵齿轮

pump with external bearing 外轴承泵

external gear oil pump 外齿轮油泵

external gear pump coupling 外啮合齿轮泵联轴器

external vane pump 偏心旋转泵

external gear rotary pump 外啮合齿轮泵

external charging pump 外部充油泵

external gear-type oil pump 外啮合齿轮式油泵

External meshing gear pump 外啮合齿轮泵