ZAZ has just shipped 3 units of steel navigation buoys to Cairo, the capital of Egypt. This order came from a regular customer which we have cooperated for several times and  built a long business relationship.  The 2200mm diameter steel navigation buoys  has been customized in order to meet the requirements of our customer. And we finally complete the order within 25 days after they confirmed the order. then steel navigation buoys have been passed all the test before shipping.