SYXC-Y48,SYKL-Y48,SYXC-Y60,SYKL-Y60,淹没式脉冲阀
SYXC-Y42,SYKL-Y42,SYXC-Y76,SYKL-Y76,
SYXC-Y89,SYKL-89,DYM-89,DYMF-89 ,
DYM-II-80,