Chang’s Liquid Guide Video Chang’s Liquid Guide VideoDownload Now!By IDS CAD|2016-05-10T11:38:01-04:00April 18th, 2016|Comments Off on Chang’s Liquid Guide Video Share This Story, Choose Your Platform! FacebookPinterestEmail About the Author: IDS CAD Providing quality services to maximize the mechanical and aesthetic value to all prosthetic restorations. Utilizing the latest technological equipments, can readily restore any complex restorations with both consistency, and precision.