电动对夹式衬氟蝶阀D971F46-10C

防爆电动对夹蝶阀FBD973H-10C/16C

电动防爆法兰蝶阀FBD943H/W

FBD943H-10C/16C电动防爆蝶阀

D981X-10P/16P电动卫生级蝶阀

D973H-16C电动对夹式蝶阀

电动软密封蝶阀D971F-10C/16C

D971W-1P电动通风蝶阀

D971H-10C电动对夹式蝶阀

D971F46-10C电动衬氟蝶阀

D961X-10P/16P电动卫生级蝶阀

D943W-16P电动防爆蝶阀