We keep on with the theory of "quality first, provider initially, constant improvement and innovation to meet the customers" with the management and "zero defect, zero complaints" as the standard objective. To great our company, we deliver the merchandise using the fantastic excellent at the reasonable price for HRVs, Air cleaner , Holtop Industrial AHU , Customized Function Modules ,villa heat recovery fresh air ventilation system . Our Lab now is "National Lab of diesel engine turbo technology " , and we own a professional R&D team and complete testing facility. The product will supply to all over the world, such as Europe, America, Australia,Jordan , Cambodia ,Hanover , Czech republic .Now we are sincerely consider to grant brand agent in different areas and our agents' maximum margin of profit is the most important thing we care about. Welcome all of the friends and customers to join us. We are ready to share win-win corporation.