D343H-PN2.5三偏心金属密封蝶阀

D343H-16C双向密封蝶阀

D343H-64C法兰金属密封蝶阀

D343H-PN0.6法兰金属硬密封蝶阀

D343H-PN1.0法兰连接金属密封蝶阀

D343H-PN1.6法兰连接密封蝶阀

D343H-PN4.0三偏心金属密封蝶阀

D343H-10P法兰不锈钢蝶阀

D343H-16P不锈钢硬密封蝶阀

D343H-25P三偏心不锈钢蝶阀

D643H-16C法兰气动蝶阀

D943H-16C电动硬密封蝶阀