The Arizona Sheet Metal Residential / Commercial Contractor (CR-45) Highlighted & Tabbed Book Package from 1 Exam Prep provides highlighted and tabbed reference materials for candidates preparing for the Arizona CR-45 sheet metal contractor licensing exam. This package includes approved open-book exam references covering sheet metal fabrication, HVAC duct systems, flashing installation, ventilation systems, metal materials and fasteners, blueprint reading, construction safety standards, installation methods, and code compliance requirements designed to support residential and commercial sheet metal contractor exam preparation in Arizona.