AMWEI Thermistor Sensor design and manufacture PTC & NTC thermistors (THERMally sensitive resistors), thermistor temperature sensors probe. AMWEI started Thermistors business back in 1999, thorough successive hard work of a group of specialists in ceramic sensitive material, welding technology, packaging technology. They own core know-how in powder formula and key production technics.

Cvsair Ventilation Technics Cvsair has achieved many successes in the ventilation industry and related investments since 2008. As a reliable business partner in energy efficiency and ventilation issues, Cvsair continues to achieve its goals with confident steps. It has gained an important place in the sector by combining quality products with affordable prices.

Envicool is a China-based foremost provider of equipment cooling solutions for telecom sites and data centers, energy storage, Telecom 5G base station cabinet, healthy environment, Industry Automation, EV Bus & Rail Transit, EV Cold Chain Logistics, EV car charger, Electronics, etc.