J21BJ21B外螺纹氨用截止阀

J11BJ11B内螺纹氨用截止阀

FDT40HFDT40H锁闭防盗调节阀

FDZ45HFDZ45H暗杆防盗闸阀

FDZ45XFDZ45X防盗闸阀

FD343HFD343H防盗蝶阀

FJ41HFJ41H防盗截止阀

X43WX43W二通不锈钢旋塞阀

H14WH14W内螺纹旋启式止回阀

HH49XHH49X微阻缓闭蝶形止回阀

H42XH42X底阀

H41WH41W升降式止回阀