JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. RR 22.07.00-4.1 Chinese Steel Design Workflow The design of steel sections to the Chinese code is now integrated into the STAAD.Pro interface as the Chinese Steel Design workflow Note: Previously, the SSDD application was only available as a standalone application. Parent topic: RR 22.07.00-4 Features Affecting Post Processing Related conceptsD. Chinese Steel Design