DunAn Environment

For many years, our service valves and ball valves have been adopted in numerous systems including room air conditioners, heat pump water heaters, VRV, unit machine, commercial air conditioners, commercial refrigerators, special refrigerators, etc. .We have provided customers worldwide with quality products and services and a complete range of products. As a leading enterprise in the global refrigeration component industry, the company is a strategic partner of multiple well-known air conditioning manufacturers worldwide, with main product production and sales ranking among the top in the world. The company regards innovation as the soul of enterprise development, continuously improving its core competitiveness in technology and quality. It has a nationally recognized enterprise technology center, a national postdoctoral workstation, an academician workstation, a national certified (CNAS) laboratory, and a national central air conditioning full performance testing center. It has established a core technology support system with independent intellectual property rights. I have participated in the drafting and revision of 78 national and industry standards, and have won honorary titles such as the "National Quality Award", "National Innovative Pilot Enterprise", "Second Prize of National Science and Technology Progress Award" The company has branches or sales offices in North America, South America, Europe, Japan, South Korea, Thailand, India, the Middle East, Malaysia, Taiwan, and manufacturing factories in Thailand.