D971X-10-DN300,D971X-10-DN400,D971X-10-DN450,D971X-1.0-DN100, D971X-10-DN500,D971X-10-DN600,D971X-10-DN700,D971X-10-DN800, D971X-10-DN900,D971X-10-DN1000,D971X-10-DN1200,D971X-1.0-DN65,电动软密封蝶阀

D971X-1.0-DN50,D971X-10-DN350,D971X-1.0-DN80,D971X-10-DN1400,D971X-1.0-DN125,D971X-1.0-DN150,D971X-1.0-DN200,D971X-1.0-DN250,

D971X-1.0-DN300,D971X-1.0-DN350,D971X-1.0-DN400,D971X-1.0-DN450,

D971X-1.0-DN500,D971X-1.0-DN600,D971X-1.0-DN700,D971X-1.0-DN800,

D971X-1.0-DN900,D971X-1.0-DN1000,D971X-1.0-DN1200,D971X-1.0-DN1400,

D971X-10-DN50,D971X-10-DN65,D971X-10-DN80,D971X-10-DN100,

D971X-10-DN125,D971X-10-DN150,D971X-10-DN200,D971X-10-DN250,

D971X-10-DN300,D971X-10-DN400,D971X-10-DN450,D971X-1.0-DN100,

D971X-10-DN500,D971X-10-DN600,D971X-10-DN700,D971X-10-DN800,

D971X-10-DN900,D971X-10-DN1000,D971X-10-DN1200,D971X-1.0-DN65,电动软密封蝶阀

D971X-1.0-DN50,D971X-10-DN350,D971X-1.0-DN80,D971X-10-DN1400,D971X-1.0-DN125,D971X-1.0-DN150,D971X-1.0-DN200,D971X-1.0-DN250, D971X-1.0-DN300,D971X-1.0-DN350,D971X-1.0-DN400,D971X-1.0-DN450, D971X-1.0-DN500,D971X-1.0-DN600,D971X-1.0-DN700,D971X-1.0-DN800, D971X-1.0-DN900,D971X-1.0-DN1000,D971X-1.0-DN1200,D971X-1.0-DN1400, D971X-10-DN50,D971X-10-DN65,D971X-10-DN80,D971X-10-DN100, D971X-10-DN125,D971X-10-DN150,D971X-10-DN200,D971X-10-DN250, D971X-10-DN300,D971X-10-DN400,D971X-10-DN450,D971X-1.0-DN100, D971X-10-DN500,D971X-10-DN600,D971X-10-DN700,D971X-10-DN800, D971X-10-DN900,D971X-10-DN1000,D971X-10-DN1200,D971X-1.0-DN65,电动软密封蝶阀