HC41X-16法兰消音消声止回阀立式卧式碳钢单向阀DN80 100 150 200

H44T-16旋启式止回阀 铸铁铜芯法兰止回阀DN40 50 80 100 150 200

HC41X-16法兰消声止回阀 单向逆止阀DN40 50 65 80 100 150 200

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

H44T-16旋启式止回阀铸铁法兰逆止阀国标重型DN65 80 100 150 200

HC41X-16法兰消声止回阀 刚体立式单向逆止阀DN65 80 100 150 200

HC41X不锈钢芯立式消声逆止单向止回阀DN50 6 80 100 125 150 200

HC41X-16法兰消声止回阀长体 单向阀逆止阀DN40 50 65 80 100 150

H44H-16C-25C铸钢旋启式止回阀 法兰止回阀DN50 80 100 150 200

H44T-16旋启式止回阀铸铁铜芯法兰止回阀DN40 50 80 100 150 200

H42H-16C铸钢立式法兰止回阀25C40C单向阀逆止阀DN50 80 100 150

H42H-16C铸钢立式法兰止回阀25C40C单向阀逆止阀DN50 80 100 150

沟槽止回阀DN100 150 200卡箍连接沟槽式消声止回阀HC81X阀门

304不锈钢对夹式止回阀H74W-16P薄型圆盘翻板止逆单向阀DN100 150

304不锈钢对夹式止回阀H74W-16P薄型圆盘翻板止逆单向阀DN100 150

304/201不锈钢H71W对夹式止回阀/逆流单向逆止阀高温DN20/100/150

HC41X-16法兰立式止回阀消声铸铁碳钢消声消音单向阀DN80 100 150

橡胶瓣止回阀法兰式H44X-16Q立式阀球墨铸铁DN50 65 80 100 150

HC41X-16法兰消声止回阀消音立卧式单向阀DN40 50 65 80 100 150

304不锈钢对夹蝶式止回阀H77X蝶形软密封单向止逆阀DN80 150 250

41X-16法兰消声止回阀消音立卧式单向阀DN40 50 65 80 100 150

DH77X-16对夹式止回阀蝶式铸铁逆止阀止逆阀DN50 65 80 100 150

UPVC球型止回阀DN15-150 PVC单由令止回阀 立式止回阀 塑料止回阀

法兰消声止回阀HC41X-16消音立卧式单向阀DN40 50 65 80 100 150

DN150多功能三合一止回阀JLH-16P不锈钢304三功能止回阀DN125 100

HC41X-16法兰消声止回阀 消音立卧式单向阀dn40 50 65 80 100 150

H41T-16法兰升降式止回阀 卧式止逆阀单向阀DN25 40 50 65 80 150

旋转止回阀法兰止回阀水平止回阀单向阀Dn50 65 80 100 150

H44H-16C铸钢止回阀单向阀旋启式法兰卧式逆止阀DN50 80 100 150

H44H-16C铸钢法兰旋启式止回阀dn25 50 65 80 100 125 150 200

HC41X-16法兰消音止回阀消音立卧式止逆阀DN40 50 65 80 100 150

hh44x重锤式止回阀 dn150微阻缓冲缓闭止回阀 管道防水锤逆止阀

滚珠止回阀Hq41X-16Q滑动滚动球污水单向阀防堵塞止回阀Dn100 150

UPVC对夹式止回阀pvc止逆阀蝶式翻板阀单板单向阀止回阀dn40dn150

止回阀 塘沽蝶式对夹式铸铁消声DN50/100/150止回阀D77X-16

铸钢蝶式止回阀DN20/25/32DN40/50/65/80/100/125/150/200-DN600

H71W对夹式止回阀消声不锈钢止回阀304单向阀DN150逆止阀水泵水气

橡胶瓣止回阀 H44X-16Q/10C DN50 65 80 100 125 150 200 300 400

HC41X-16法兰消音消声止回阀立式卧式碳钢单向阀DN80 100 150 200

对夹式止回阀DH77X-16铸铁蝶式止回阀DN50 65 80 100 150 200 250