H14W不锈钢内螺纹止回阀H14W

H74H对夹单瓣旋启式止回阀H74H

H76对夹蝶式止回阀H76

HC41X,DRV*止回阀HC41X,DRV

H42立式止回阀H42

H44美标止回阀H44

H41升降式止回阀H41

HC41X消声止回阀HC41X

H44H旋启式止回阀H44H

HH46x、HDH48x、HH49X消声缓闭止回阀HH46x、HDH48x、HH49X

HH47X缓闭蝶形止回阀HH47X

H41T,H44T铸铁止回阀H41T,H44T