Drez (Guangzhou) Intelligent Technology Co., Ltd. has over 15 years of experiences in manufacturing, sales and rentals of full range of Central Air Conditioning Systems, Drez provides not only products but turnkey event solutions, covering Outdoor Packaged A/C units, Indoor Central HVAC units. Over the past decades, as the oldest and leading R&D manufacturer in the event industry in China, we have become the Largest Event Equipment Group companies in China Market, with products exported to many countries worldwide.