Thirteen measuring instruments provided for the Nantong Fine Steel Project of Zenith steel group Co.,Ltd. were successfully commissioned in March 2024 with the strong support of MCC Saidi Design Institute and Zenith steel group company.. In particular, the rebar special measuring instrument installed at the finishing mill exit provides accurate negative deviation, in other words they provides a valuable reference for actual production and process adjustment. So Eastloong rebar measuring system has become an important part of cost reduction and efficiency improvement for steel plants.