D973F-16-DN200,D973F-16-DN250,D973F-16-DN300,D973F-16-DN350, D973F-16-DN450,D973F-16-DN500,D973F-25-DN150,D973F-25-DN250, D973F-25-DN80,D973F-25-DN100,D973F-25-DN125,D973F-25-DN200,电动软密封蝶阀

D973F-1.6-DN80,D973F-2.5-DN250,D973F-16-DN400,D973F-25-DN350,D973F-1.6-DN100,D973F-1.6-DN125,D973F-1.6-DN150,D973F-25-DN500,

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-25-DN450,

D973F-2.5-DN80,D973F-2.5-DN100,D973F-2.5-DN125,D973F-2.5-DN150,

D973F-2.5-DN200,D973F-2.5-DN300,D973F-2.5-DN350,D973F-25-DN400,

D973F-2.5-DN400,D973F-2.5-DN450,D973F-2.5-DN500,D973F-25-DN300,

D973F-16-DN80,D973F-16-DN100,D973F-16-DN125,D973F-16-DN150,

D973F-16-DN200,D973F-16-DN250,D973F-16-DN300,D973F-16-DN350,

D973F-16-DN450,D973F-16-DN500,D973F-25-DN150,D973F-25-DN250,

D973F-25-DN80,D973F-25-DN100,D973F-25-DN125,D973F-25-DN200,电动软密封蝶阀

D973F-1.6-DN80,D973F-2.5-DN250,D973F-16-DN400,D973F-25-DN350,D973F-1.6-DN100,D973F-1.6-DN125,D973F-1.6-DN150,D973F-25-DN500, 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-25-DN450, D973F-2.5-DN80,D973F-2.5-DN100,D973F-2.5-DN125,D973F-2.5-DN150, D973F-2.5-DN200,D973F-2.5-DN300,D973F-2.5-DN350,D973F-25-DN400, D973F-2.5-DN400,D973F-2.5-DN450,D973F-2.5-DN500,D973F-25-DN300, D973F-16-DN80,D973F-16-DN100,D973F-16-DN125,D973F-16-DN150, D973F-16-DN200,D973F-16-DN250,D973F-16-DN300,D973F-16-DN350, D973F-16-DN450,D973F-16-DN500,D973F-25-DN150,D973F-25-DN250, D973F-25-DN80,D973F-25-DN100,D973F-25-DN125,D973F-25-DN200,电动软密封蝶阀