HEATKEYS

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

TSI Incorporated serves a global market by investigating, identifying and solving measurement problems. As an industry leader in the design and production of precision measurement instruments, TSI partners with research institutions and customers aro...

instrumentation for HVAC, building science, weatherization, and home inspectors. TruTech tools specializes in designing custom kits for energy auditors, building performance, weatherization, home inspection and energy auditors.

NMB provides the highest quality and design expertise in electrical rotating components, including cooling fans, motors and bearings.

建準一直以來秉持著品牌、創新的經營理念，成為今日LED散熱模組、DC風扇、散熱風扇、磁浮風扇的領導廠商，並研發出世界最薄的最小風扇，持續培育研發的人才，讓建準得以永續發展。

Engineering information and connections for the global community of engineers. Find engineering games, videos, jobs, disciplines, calculators and articles…

Contracting Business is the leading business-to-business magazine for commercial, residential, and industrial contractors in the heating, ventilation, air conditioning and refrigeration industries.

eFunda, the ultimate online reference for the mechanical engineering community

Welcome to ANSYS, Inc. - computer-aided engineering technology and engineering design analysis software products and services.