锻钢不锈钢美标升降式止回阀 H41H-150LB/300LB/600LB/900LB/1500LB

锻钢碳钢美标旋启式止回阀 H44H-150LB/300LB/600LB/900LB/1500LB

锻钢不锈钢美标旋启式止回阀 H44H-150LB/300LB/600LB/900LB/1500LB

黄铜内螺纹止回阀 brass FNPT swing check valve H14W-16T

不锈钢螺纹/承插焊连接止回阀 H11H/H61H-800LB

不锈钢螺纹/承插焊连接止回阀 H11H/H61H-1500LB

自密封不锈钢螺纹/承插焊连接止回阀 H11H/H61H-2500LB

碳钢螺纹/承插焊连接止回阀 H11H/H61H-800LB

碳钢螺纹/承插焊连接止回阀 H11H/H61H-1500LB

自密封碳钢螺纹/承插焊连接止回阀 H11H/H61H-2500LB

碳钢螺纹/承插焊旋启式止回阀 H14H/H64H-1500LB

碳钢螺纹/承插焊旋启式止回阀 H14H/H64H-800LB