DCF-Y-25，DCF-Y-40S，DCF-Y-50S，DCF-Y-62S，DCF-Y-76S，DCF-Y-102S，淹沒(méi)式脈沖閥

DCF-Y-25，DCF-Y-40S，DCF-Y-50S，淹沒(méi)式脈沖閥

DCF-Y-62S，DCF-Y-76S，DCF-Y-102S，

DCF-Y-25，DCF-Y-40S，DCF-Y-50S，淹沒(méi)式脈沖閥 DCF-Y-62S，DCF-Y-76S，DCF-Y-102S，