GB/T 17213.6-2005
ActiveIndustrial-process control valves Part 6-1:Mounting details for attachment of Positioners to control valves-Positioner mounting on linear actuators
工业过程控制阀 第6-1部分:定位器与控制阀执行机构 连接的安装细节 定位器在直行程执行机构上的安装
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GB/T 2877-1981
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GB/T 8375-1987
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GB/T 12249-1989
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GB/T 12248-1989
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GB/T 12247-1989
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GB/T 12223-1989
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GB/T 12220-1989
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GB/T 12250-1989
Automatic steam traps—Face-to-face dimensions