D941X铸铁中线软密封双法兰电动蝶阀

D73H不锈钢偏心对夹蝶阀

D41X美标AWWA C504中线软密封蝶阀

X43XAWWAC517美标铸铁偏心半球软密封旋塞阀

HD41X英标美标铸铁90°三合一多功能控制止回阀

HH44XAWWA HH44X微阻缓闭止回阀

SP45X数字锁定静态平衡阀

H72TH72T对夹消音止回阀

HH44XAWWAC58HH44X微阻缓闭重块止回阀

H74XH74X不锈钢薄型单板止回阀

H74XH74X铸铁对夹单板旋启式止回阀

H42T-16Z英标美标铸铁法兰立式升降消音止回阀