With our leading technology at the same time as our spirit of innovation,mutual cooperation, benefits and advancement, we will build a prosperous future with each other with your esteemed firm for heat recovery core of AHU, ALU HEAT EXCHANGERS , indoor air quality , Rooftop Air Conditioner ,Ventilation system with heat recuperative . Welcome to post your sample and color ring to let us produce according to your specification.Welcome your inquiry! Looking forward to building long-term cooperation with you! The product will supply to all over the world, such as Europe, America, Australia,Nicaragua , Oman ,Muscat , Lahore .Our company regards "reasonable prices, high quality,efficient production time and good after-sales service" as our tenet. We hope to cooperate with more customers for mutual development and benefits in future. Welcome to contact us.