F012-WN DN150,F012-WN DN200,F012-WN DN250,F012-WN DN300,双法兰蝶阀
F012-WN DN150,F012-WN DN200,F012-WN DN250,F012-WN DN300,F012-WN DN350,F012-WN DN400,F012-WN DN450,F012-WN DN500
F012-WN DN600,F012-WN DN700,F012-WN DN750,F012-WN DN800,F012-WN DN900,F012-WN DN1000,F012-WN DN1050,F012-WN DN1100
F012-WN DN1200,F012-WN DN1300,F012-WN DN1350,F012-WN DN1400,F012-WN DN1500,F012-WN DN1600,F012-WN DN1800
F012-WN DN2000