止回阀/微阻缓闭蝶式

1：微阻缓闭蝶式止回阀 (2200元)
2：方威牌微阻缓闭消声蝶式止回阀HH48X/HH49X DN250 DN300 DN400 (1553元)
3：方威牌铸钢微阻缓闭消声蝶式止回阀 HH48X/HH49X DN50 DN65 DN80 (531元)
4：方威牌铸钢微阻缓闭消声蝶式止回阀HH48X/HH49X DN100 DN125DN150 (786元)
5：方威牌微阻缓闭消声蝶式止回阀HH48X/HH49X DN50 DN65 DN80 DN100 (527元)
6：方威牌铸钢微阻缓闭消声蝶式止回阀HH48X/HH49X DN200 DN250DN300 (1311元)
7：HH46型微阻缓闭蝶式止回阀 (200元)
8：HH47、H47XF、HDH47X蝶式缓冲止回阀 (200元)
9：HH49型微阻缓闭蝶式止回阀 (200元)
10：HH47X/HH48X/HH49X-16 微阻缓闭蝶式消声止回阀DN125 (898元)