knife gate 刀形进模口 ; 压边浇口

knife gate valve 刀型闸阀 ; 刀闸阀

knife gate valves 刀闸阀

Knife-shaped gate valve 刀型闸阀

Wafer knife gate valves 对夹式刀形闸阀

Knife type gate valves 刀型闸阀

Knife-Gate Valves 闸刀阀

Flanged Knife Gate Valves 法兰刀闸阀

Knife-Gate 闸刀阀