Our firm aims to operating faithfully, serving to all of our shoppers , and working in new technology and new machine consistently for Heat Recycle Core, Heat Recovery Ventilator Case, Recovery Ventilation System, Central Ventilation System,Energy Recovery Ventilator Core. We sincerely welcome domestic and foreign merchants who calls, letters asking, or to plants to negotiate, we will offer you quality products and the most enthusiastic service,We look forward to your visit and your cooperation. The product will supply to all over the world, such as Europe, America, Australia,Brisbane, South Korea,Finland, Bulgaria.Our company now has many department, and there have more than 20 employees in our company. We set up sales shop, show room, and product warehouse. In the meantime, we registered our own brand. We've got tightened inspection for quality of product.