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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 22137.2-2008 |
Valve positiongers for use in industrial-process control system - Part 2: Methods of evaluating the performance of intelligent value positiongers with pneumatic outputs 工业过程控制系统用阀门定位器 第2部分：气动输出智能阀门定位器性能评定方法 |
China National Standards Valve positiongers use |
 English PDF |
| GB/T 22137.1-2008 |
Valve positiongers for use in industrial-process control system - Part 1: Methods of evaluating the performance of valve positiongers with pneumatic outputs 工业过程控制系统用阀门定位器 第1部分：气动输出阀门定位器性能评定方法 |
China National Standards Valve positiongers use |
English PDF |
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