Recently, CISDI signed engineering contract of 800,000 t/a large-sized bar project with Chengde Jianlong Special Steel Co., Ltd. The production line represents a major project of Jianlong Group for product structure adjustment and transform from construction steel to quality mechanical steel. Main mill line consists of bloom mill plus continuous rolling mill for rolling of Φ80mm~Φ250mm quality alloy steel bars for machinery, automobile and billets with capacity 800,000t/a. This is another large-sized bar project following Echeng Steel large-sized bar project and Beiman Special Steel Project. Signing of this engineering contract fully demonstrates CISDI’s technical strength in large-sized bar and blooming mill field, contributing to new references for long products field.