Our progress depends about the advanced products ,fantastic talents and continuously strengthened technology forces for ERV, hospital ventilation equipment , negative pressure room , Cleanroom heat exchanger ,heat recovery core of AHU . Welcome to visit our company and factory. Please feel free to get in touch with us if you need any further assistance. The product will supply to all over the world, such as Europe, America, Australia,Austria , El Salvador ,Hyderabad , Porto .We have constructed strong and long co-operation relationship with an enormous quantity of companies within this business overseas. Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. Detailed Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Portugal for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.