蝶式止回阀 HH48X/HH49X-16Q
软密封闸阀暗杆 Z45X-16Q
蝶式止回阀 HH48X/HH..
铸钢闸阀 Z41H-16C
消声止回阀 HC41X-16Q
橡胶瓣止回阀 HC44X-16Q
旋启式止回阀 H44H-16C