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

蝶式缓冲止回阀HH47X-16C 缓冲蝶式止回阀HH47X-16C

碳钢升降式止回阀H41H-16C 升降式碳钢止回阀H41H-16C

衬氟升降式止回阀H41F46-10C 止回阀H41F46-10C

软密封止回阀HC44X-10C 软密封法兰止回阀HC44X-10C