ring expander tool 环扩张器工具
ring expander guide 环扩张器导管
expander ring 扩张器环
spring expander oil ring 弹簧胀圈油环
expander type piston ring 涨圈式活塞环
ring with coil spring expander 螺旋弹簧胀圈活塞环
ring with coil-spring expander 螺旋弹簧胀圈活塞环
At installation, insufficient compression of the sealing pad behind the carbon ring seal of the expander results in oil entrance to expander body and to the corresponding pipeline.
由于膨胀机碳环密封后面的密封垫片在安装时未被充分压紧，使膨胀机机体及相应管道进油。
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