Project Timeline for PowerPoint
https://elements.envato.com/project-timeline-for-powerpoint-CKN67PK
Free 
Product Launch Roadmap for PowerPoint
文件下载,https://downloads.cgguy.com/d/vianetsp/Preview/11ppt/2022/05/16/44697.810243056/cgguy.com_F3WEM9E.zip
Free 
Roadmap Templates for PowerPoint
文件下载,https://downloads.cgguy.com/d/vianetsp/Preview/11ppt/2022/05/16/44697.7634375/cgguy.com_353DMKM.zip
Free