The invention relates to a knife-shaped gate valve, in particular to a rising stem knife-shaped gate valve.

本发明涉及一种刀型闸阀，尤其涉及一种明杆刀型闸阀。

youdao

The invention relates to a knife-shaped gate valve, in particular to a rising stem knife-shaped gate valve.

本发明涉及一种刀型闸阀，尤其涉及一种明杆刀型闸阀。

youdao