对夹旋启式双瓣止回阀 wafer swing double-disc check valve H76H/H76X-16

对夹单瓣旋启式止回阀 wafer single-disc swing check valve H74H-16

对夹升降式止回阀 wafer lift check valve H71H-40

锻钢碳钢国标升降式止回阀 H41H-16/25/40

锻钢不锈钢国标升降式止回阀 H41H-16/25/40

锻钢碳钢国标升降式止回阀 H41H-64/100/160/250

锻钢不锈钢国标升降式止回阀 H41H-64/100/160/250

锻钢碳钢国标旋启式止回阀 H44H-16/25/40

锻钢不锈钢国标旋启式止回阀 H44H-16/25/40

锻钢碳钢国标旋启式止回阀 H44H-64/100/160/250

锻钢不锈钢国标旋启式止回阀 H44H-64/100/160/250

锻钢碳钢美标升降式止回阀 H41H-150LB/300LB/600LB/900LB/1500LB