H14W-16C/P/R不锈钢旋启式止回阀

H41H-16CH41H升降式止回阀

H44H-150LB美标旋启式止回阀

H74H对夹蝶式止回阀对夹蝶式止回阀

H12W-16C/P/R不锈钢立式止回阀

H42H-16CH42H立式止回阀

H71H/H72H对夹升降式止回阀对夹升降式止回阀

H77X蝶形对夹止回阀H77X对夹止回阀

H11W-16C/P/R不锈钢升降式止回阀

H44H-16CH44H旋启式止回阀

H74H对夹旋启式止回阀对夹旋启式止回阀

H72Y-320对夹式高压止回阀