metal bellow meaning in English

金属波纹管

Pipework - metal bellows expansion joints - general
管道工程.金属波纹管膨胀节.总则
General specification for metal bellows expansion joints
金属波纹管膨胀节通用技术条件
Specifications of welded metal bellows mechanical seal for agitators
焊接金属波纹管釜用机械密封技术条件
Metal bellows seal the two pressure chambers off from the gauge case
金属波纹管将两个压力室密封在表壳外。
The metal bellows for valves
阀门用金属波纹管

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