Our target should be to consolidate and improve the high-quality and repair of current goods, in the meantime regularly produce new solutions to meet unique customers' needs for HVACs, Classroom Ventilation , air to air wheel type heat exchanger , Fresh air ventilation system ,negative pressure airflow . We look forward to receiving your enquires soon and hope to have the chance to work together with you inside the future. Welcome to take a look at our organization. The product will supply to all over the world, such as Europe, America, Australia,Sheffield , Tunisia ,Montreal , Bhutan .We now have been making our goods for more than 20 years . Mainly do wholesale , so we've the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we offer good solutions , but also because of our good after-sale service . We are here waiting for yourself for your inquiry.