Adhering to your principle of "quality, assistance, performance and growth", we have now gained trusts and praises from domestic and international customer for negative pressure room, commercial ventilation system , residential HVAC system , hospital air handling units ,negative pressure airflow . Our company is dedicated to providing customers with high and stable quality products at competitive price, making every customer satisfied with our products and services. The product will supply to all over the world, such as Europe, America, Australia,Honduras , Provence ,Indonesia , New Orleans .With the advanced workshop, professional design team and strict quality control system, based on mid- to high-end marked as our marketing positioning, our products are fast selling onto European and American markets with our own brands such as below Deniya, Qingsiya and Yisilanya.