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Architectural Precast Association The Architectural Precast Association is a not-for-profit trade association organized to serve the informational, technical and business needs of Architectural Precast Concrete manufacturers and their suppliers and to promote high standards of workmanship throughout the industry. http://www.archprecast.org/
Expanded Shale Clay and Slate Institute Slate Institute is an trade association serving the ceramic Lightweight aggregate industry manufactured by the rotary kiln process worldwide. http://www.escsi.org/
Precast/Prestressed Concrete Institute The primary purpose of TechnoQuest is to allow producer executives to familiarize themselves firsthand with new plant technologies and make contacts with the people who use and supply these technologies. http://www.pci.org/