H71H对夹升降式止回阀

H71XT对夹式消声止回阀

DHH44X微阻缓闭消声止回阀

H41H铸钢升降式止回阀

H41W不锈钢升降式止回阀

H41H高压升降式止回阀

H44H铸钢旋启式止回阀

H44H高压旋启式止回阀

H44W不锈钢旋启式止回阀

H42H铸钢立式止回阀

H42W不锈钢立式止回阀

H76X对夹双瓣式止回阀