We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our management ideal for heat recovery core, villa MVHR. , negative pressure airflow , Counterflow Core Recuperator ,600cmh ERVs . Safety as a result of innovation is our promise to each other. The product will supply to all over the world, such as Europe, America, Australia,Malaysia , St. Petersburg ,Amsterdam , Comoros .The design, processing, purchasing, inspection, storage, assembling process are all in scientific and effective documentary process , increasing usage level and reliability of our brand deeply, which makes us become superior supplier of the four major product categories shell castings domestically and obtained the customer's trust well.