subsurface controlled subsurface safety valve
...井下控制井下安全阀 subsurface controlled subsurface safety valve 单线控制井下安全阀 singleline subsurface safety valve 地面控制井下安全阀 surface controlled subsurface safety valve ..
基于44个网页-相关网页
... 半钢铸件； SSC 井下控制井下安全阀 SSCSSV 固态集成电路井底压力温度记录仪 SSDR ...
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