งานติดตั้งระบบบำบัดนำเสีย "Tecofi" Butterfly Valve & "HKC HQ-Series" Electric Actuator-Butterfly valve with electric actuator
![](https://mvt-hk.com/wp-content/uploads/https://i.ytimg.com/vi/hDtj9-Q1jao/maxresdefault.jpg)
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#Butterfly valve with electric actuator