Z41J衬胶闸阀
J41J衬胶截止阀
H44J旋启式衬胶止回阀
H40J浮球式衬胶止回阀
GJ41X管夹阀
G6K41J常开式气动隔膜阀
G6B41J常闭式气动隔膜阀
G45J直流式隔膜阀
G41J衬胶隔膜阀
EG6K41J气动衬胶隔膜阀
EG6B41J英标常闭式气动隔膜阀
EG46J直通式隔膜阀