J61Y,J11H,J41Y锻钢截止阀

GIQ,GID气动，电动高真空蝶阀

WBSX信号蝶阀

D643H气动多层次法兰式蝶阀

D943H电动法兰硬密封蝶阀

D673H气动多层次对夹式蝶阀

D671X气动软密封蝶阀

D673H气动对夹式弹性金属密封蝶阀

D643H气动弹性金属密封法兰式蝶阀

D643W气动通风蝶阀

D343W通风蝶阀

D371X软密封对夹蝶阀