Welcome to Qingdao OAK Environmental Equipment Co., Ltd., a leading HVAC manufacturer in China, specializing in advanced central A/C products. Established in 2005, we have evolved from a strong domestic presence to a global competitor, distributing high-quality Fan Coils, AHUs, and chillers to over 50 countries. Our commitment to innovation drives us to develop energy-saving solutions that enhance user satisfaction. As an OEM/ODM partner, we collaborate with major projects to achieve mutual succ