D943H电动偏心蝶阀

D343H金属密封蝶阀

软密封对夹式气动蝶阀D671X-6/10/16

软密封对夹式电动蝶阀D971X-6/10/16

软密封手动对夹式蝶阀D71X-6/10/16

LT型手柄对夹式蝶阀D7L1X-6/10/16

软密封蜗轮对夹式蝶阀 D371X-6/10/16

软密封蜗轮四氟对夹式蝶阀D371F-6/10/16

软密封手柄四氟对夹蝶阀D71F-6/10/16

软密封对夹式信号蝶阀XD371X-10/16