H77X-16/304不锈钢/碳钢对夹蝶式蝶形软密封止回阀/DN40-300

铸铁对夹蝶式止回阀DH77X单向倒流自来水泵逆止阀 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对夹式止回阀蝶式止回阀逆止阀单向阀DN50 65 80 100 150

对夹式蝶式止回阀DH77X-16Z单向阀逆止阀不锈钢阀杆弹簧

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

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

正品埃美柯双瓣止回阀H76X铸铁对夹双瓣弹簧蝶式9406A单向阀水阀

H76W-16P蝶式止回阀DN50-DN600不锈钢304对夹式止回阀单向逆止阀

蝶式止回阀DH77X-16对夹式止回阀单向阀塘沽蝶阀法兰蝶阀涡轮蝶阀

PC/PP软管宝塔插口止回阀耐酸高温塑料蝶式锥形单向阀弹簧倒刺阀

304不锈钢H74W-16P止回阀薄型水管对夹式逆止单向阀蝶式316DN5080

蝶式对夹止回阀 单向单流双瓣 DH77X-16

正品埃美柯双瓣止回阀H76X铸铁对夹双瓣弹簧蝶式9406A单向阀水阀

H46W-16P双瓣法兰止逆阀蝶式双板铸钢不锈钢止回阀80

蝶式止回阀逆止阀法兰止回阀消声止回阀球墨铸铁对夹止回阀单向阀

A对夹式止回阀DH77X-10/16Q球墨体球墨板304板EPDM双瓣蝶式止回阀

H76W-16R止回阀对夹蝶式止回阀50-300不锈钢316硬密封单向逆止阀

新款DH77X-16对夹式止回阀蝶式铸铁逆止阀单向阀DN50 65 80 100 1

HH49X-10/16/25C铸钢消声缓闭止回阀DN40-1600水泵水锤蝶式单向阀

蝶式止回阀DH77X-16s对夹式止回阀单向阀塘沽蝶阀法兰蝶阀涡轮蝶

H76W-16P止回阀薄型304不锈钢水管对夹式逆止单向阀蝶式硬密封阀

对夹式蝶式止回阀DH77X-16Z单向阀逆止阀不锈钢阀杆304板DN50 65

H76W-16P止回阀薄型304不锈钢水管对夹式逆止单向阀蝶式316DN5080