We have our own sales team, design team, technical team, QC team and package team. We have strict quality control procedures for each process. Also, all of our workers are experienced in printing field for China Heat Recuperation and Fresh Air Ventilation System price, Mechanical ventilation system , Commercial Projects , Heat Exchange System ,Liquid Circulation Heat Exchangers . We have ISO 9001 Certification and qualified this product .over 16 years experiences in manufacturing and designing, so our products featured with best quality and competitive price. Welcome cooperation with us! The product will supply to all over the world, such as Europe, America, Australia,Iceland , Bulgaria ,Cape Town , Colombia .We have a dedicated and aggressive sales team, and many branches, catering to our main customers. We are looking for long-term business partnerships, and ensure our suppliers that they will definitely benefit in both short and long run.