To order handwheel or chainwheel actuators, add the appropriate order code to the basic valve order code.

订购手轮或链轮执行器时，要在主阀门订购代码基础上增加适当的执行器订购代码。

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To order handwheel or chainwheel actuators, add the appropriate order code to the basic valve order code.

订购手轮或链轮执行器时，要在主阀门订购代码基础上增加适当的执行器订购代码。

youdao