ball float valve 浮子阀

pilot operated ball float valve 液控浮球阀

Float ball valve 浮动式球阀 ; 球阀 ; 浮动球阀

Hydraulic ball float valve 液压浮球阀

float-ball self-closing valve 浮球式自动关闭阀

float ball self-closing valve 浮球式自闭阀

float ball selfclosing valve 浮球式自闭阀