disk check valve斜盘式止逆阀
disk hellonged valve足球门自动阀
Disk dump valve盘式关闭阀
disk type valve盘形阀
disk hinged valve球门自动阀
parallel single disk gate valve单阀碟双面平行密封闸阀;单阀碟双面平行密封;船用闸阀
linear action disk-valve平板滑阀
tilting-disk check valve斜盘式止逆阀
tilting-disk prosthetic valve倾斜式碟瓣