DH77X-16对夹式止回阀蝶式止回阀逆止阀单向阀DN50 65 80 100 150

铸钢对夹式蝶形止回阀H77X-16C单向阀对夹式双瓣逆止阀DN50-DN300

DH77X-16对夹式止回阀蝶式铸铁逆止阀单向阀DN50 65 80 100 150

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

304/316L对夹式止回阀H76W-16P不锈钢双瓣蝶式单向逆止阀DN50-600

304不锈钢对夹式止回阀H71W水管水泵止逆单向阀4分1寸DN25 50 100

304不锈钢H74W-16P对夹式止回阀薄型逆止翻板式单向阀dn50 65 100

304材质不锈钢H71对夹式止回阀 不锈钢单向阀 DN15/20/32/40/50

H71H/W-16P不锈钢304对夹式止回阀H71光面锅炉配件止逆阀DN50 80

H71/73W-16P 304不锈钢对夹式止回阀单向阀止水阀DN25 50 100 125

H74W-16P 304/316不锈钢薄型圆盘式止回阀对夹式止回阀DN50-DN600

碳钢对夹式止回阀H71H-16P水泵耐高温止逆单向阀门dn25 50 80 100

H71W对夹式止回阀304不锈钢立式单向阀逆止阀DN25 40 50 100 150

铸钢对夹式薄型止回阀H74碳钢单板圆片式挡板单向止逆阀门DN50 80

304不锈钢对夹式止回阀H71光面抛光加厚止逆单向阀门DN50 65 100

对夹式蝶形止回阀 对夹蝶式止回阀 H77X-16 DN40 50 65 80 100

对夹式蝶形止回阀 对夹蝶式止回阀 H77X-16 DN40 50 65 80 100

对夹圆片式止回阀 H74W-16P不锈钢薄型止回阀DN40 50 65 80 100

对夹式蝶形蝶式止回阀逆止阀单向阀阀门DN40 50 65 80 100 150

DH77X-16对夹式止回阀蝶式铸铁逆止阀单向阀DN50 65 80 100 150

DH77X-16对夹式止回阀蝶式铸铁逆止阀单向阀DN50 65 80 100 150

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

碳钢对夹式止回阀H71H-16P弹簧式加厚单向止逆阀门DN25 50 100

不锈钢对夹式止回阀 H71W 201 304止逆阀止逆阀耐高温DN25 50 100

304不锈钢对夹式止回阀H71W高温立式单向阀止逆阀DN25 40 50 100

304不锈钢对夹式止回阀H71W高温立式单向阀止逆阀DN25 40 50 100

304不锈钢对夹式止回阀H71W高温立式单向阀止逆阀DN25 40 50 100

法兰消声止回阀对夹式立式单向阀逆止阀DN 50 65 80 100 150 200

铸钢对夹式蝶形止回阀H77X-16C单向阀对夹式双瓣逆止阀DN50-DN300

304不锈钢对夹式止回阀h71w水管水泵止逆单向阀4分1寸DN25 50 100

304不锈钢对夹式止回阀H74圆形单向阀法兰蝶式逆水阀dn50 dn80

304不锈钢对夹式止回阀H74圆形单向阀法兰蝶式逆水阀dn50 dn80

304不锈钢对夹式止回阀H74W-16P翻板式薄片型逆止阀单向阀1寸DN50

H74W铸钢对夹式止回阀 DN40 DN50 DN65 DN80-DN500

H74W铸钢对夹式止回阀 DN40 DN50 DN65 DN80-DN500

304不锈钢H74W-16P对夹式止回阀薄型逆止翻板式单向阀dn50 65 100

304不锈钢对夹式止回阀H71H/单向阀止逆阀DN25 40 50 65 80

304不锈钢对夹式止回阀H71H/单向阀止逆阀DN25 40 50 65 80

304不锈钢对夹式软密封止回阀H71W-25P 弹簧对夹软密封单向阀DN50

304不锈钢对夹式软密封止回阀H71W-25P弹簧四氟软密封单向阀DN50

304不锈钢H71对夹式止回阀 不锈钢单向阀逆止阀DN15/20/32/40/50