... 翼形阀；锥形阀 wing valve 油封式 Lubricated plug valve 有阀翼板 double acting wing ...
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油封式旋塞阀 Lubricated plug valve
油封式震击器 oil-sealed bumper sub
油封式震击器安全接头 oil-sealed jar safety joint
双级油封式旋片真空泵 TRIVAC
油封式变阻温度计 resist.thermometer oil leak-proof
充油封闭式变压器 oil gas seal transformer ; oil gas shielded type transformer ; oil gas shield type transformator
油密封式旋转真空泵 oil sealed rotary vacuum pump
迷宫式油封 labyrinth oil seal ; labyrinth gland seal
抽油井悬挂式封隔器 hook wall pumping packer
油封式旋片真空泵是真空技术中最基本的真空获得设备之一，应用面广而量大。
The oil sealed sliding vane vacuum pump is one of basic vacuum production equipments, wide application and more requirement.
按骨架型式可分为内包骨架油封，外露骨架油封和装配式油封。
Skeleton type can be divided according to package seal, and seal the exposed skeleton oil seal assembly.
按工作条件可分为旋转骨架油封和往返式骨架油封。
According to the working conditions can be divided into rotating and reciprocating oil seal oil seal.
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