HEATKEYS

Tools and Basic Information for Design, Engineering and Construction of Technical Applications

Tambe Metal Products provides ductwork fabrication and complete installation of residential and commercial heating and air conditioning systems.

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Gustafson Duct develops, manufactures and markets sheet metal products and system solutions for the wholesale and distribution industry.

Johnson Controls is a global diversified technology and industrial leader serving customers in over 150 countries. Our 130,000 employees create quality products, services and solutions to optimize energy and operational efficiencies of buildings; l...

Building materials, products, and manufacturers on the McGraw-Hill Construction Sweets Network. Download CAD details, specs and green product information.

Steel Mills of the World - The place to find all the technical info, activities, steel qualities, steel standards, steel norms

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ASTM International develops international standards for materials, products, systems and services used in construction, manufacturing and transportation. ASTM standard specifications and test methods define uniform requirements and procedures.