上海精正阀门止回阀系列:进口止回阀,对夹式止回阀H71F-16,法兰止回阀H44H-16,日标止回阀(10K),德标止回阀H44H-16,美标止回阀H44H-150Lb,日标不锈钢止回阀,德标不锈钢止回阀,美标不锈钢止回阀H44H-150LB,高温止回阀H42W-16I,高压止回阀H61W-160,静音止回阀H2T/X/H(DRVZ),橡胶瓣止回阀HH44X(SFCV),球形止回阀HQ41X,HQ44X,HQ45X,消声止回阀H1X-16,对夹式双瓣止回阀H76X/H,H71H,H72H微阻缓闭蝶形止回阀ZHYH46H/W,HH48H/X,HH49H/X,微阻缓闭式止回阀HH44X/H/T-16,对夹圆片式止回阀H74X/H-16,旋启式止回阀H44H-16,升降式止回阀H41H-16,节能消声止回阀H41X-16,V型高压单向阀,S型高压单向阀。