法兰直通高压止回阀H41W-220R H41W-320R

型高温高压电站止回阀H64Y

升降式钢制止回阀H41H-100

止回阀H64Y-1500Lb

止回阀H48Y-200

美标电站旋启式止回阀H64H/Y-2500Lb

不锈钢美标旋启式止回阀H44W-150LB

铸铁蝶型止回阀H76X-16 蝶型铸铁止回阀H76X-16

对夹式双蝶板止回阀H76W-16P 双蝶板止回阀H76W-16P

静音式止回阀H42F-16C 静音式法兰止回阀H42F-16C

静音式止回阀CVKR 静音式法兰止回阀CVKR

对夹双瓣式蝶型止回阀H76H-16C 蝶型止回阀H76H-16C

不锈钢底阀H42X-2.5P 不锈钢法兰底阀H42X-2.5P

不锈钢升降式止回阀H41W-16P 升降式止回阀H41W-16P

焊接式升降式止回阀H61H-320C 升降止回阀H61H-320C

旋启式止回阀H44H-16C 铸铁旋启式止回阀H44H-16C

对夹蝶型旋启式止回阀H76X-16C 旋启式止回阀H76X-16C

对夹升降式止回阀H71W-16P 升降式对夹止回阀H71W-16P

立式法兰止回阀H42W-16P 不锈钢立式止回阀H42W-16P

焊接式高温高压电站止回阀H64Y-250C

不锈钢旋启式止回阀H44W-16P 旋启式止回阀H44W-16P

美标旋启式止回阀H44H-150LB 止回阀H44H-150LB

铸钢立式止回阀H42H-16C 立式铸钢止回阀H42H-16C

高压碳钢止回阀H44H-100l 碳钢高压止回阀H44H-100l