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              Construction Industry Regulations - 29 CFR Part 1926 (OSHA)MANCOMM's OSHA Construction Industry Regulations will make your job much easier. You will wonder how you ever got along without it! Inside, you will f… Read More>>  NRCA Roofing Manual: Steep-Slope Roof SystemsThe 2025 manual provides you with valuable information about the design, materials and installation techniques applicable to steep-slope roof system a… Read More>>  HVAC Duct Construction Standards, Metal and Flexible 4th EditionThe third edition of the HVAC Duct Construction Standards Metal and Flexible is intended primarily for commercial and institutional duct construction… Read More>>  Contractor Exam CalculatorThe Material Estimator is one of the few calculators allowed in the exam and is designed for contractors, trades people and estimating professionals w… Read More>>
 
 
          
          
               
            
        