D971X-1.0-DN50,D971X-1.0-DN65,D971X-1.0-DN80,D971X-1.0-DN100,電動(dòng)軟密封蝶閥
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,D973F-1.6-DN50,D973F-1.6-DN65,D973F-1.6-DN80,D973F-1.6-DN100,
D973F-1.6-DN125,D973F-1.6-DN150,D973F-1.6-DN200,D973F-1.6-DN250,D973F-1.6-DN300,D973F-1.6-DN350,D973F-1.6-DN400,
D973F-1.6-DN450,D973F-1.6-DN500,D973F-1.6-DN600,D973F-1.6-DN700,D973F-1.6-DN800,D973F-1.6-DN900,D973F-1.6-DN1000,
D973F-1.6-DN1200,D973F-1.6-DN1400D973F-2.5-DN50,D973F-2.5-DN65,D973F-2.5-DN80,D973F-2.5-DN100,
D973F-2.5-DN125,D973F-2.5-DN150,D973F-2.5-DN200,D973F-2.5-DN250,D973F-2.5-DN300,D973F-2.5-DN350,D973F-2.5-DN400,
D973F-2.5-DN450,D973F-2.5-DN500,D973F-2.5-DN600,D973F-2.5-DN700,D973F-2.5-DN800,D973F-2.5-DN900,D973F-2.5-DN1000,
D973F-2.5-DN1200,D973F-2.5-DN1400