Our company sticks into the basic principle of "Quality is definitely the life of the business, and status may be the soul of it" for passitive house ventilation system, Office Ventilation , Heat Recovery , heat pipe heat exchanger ,Customized Function Modules . We have a big inventory to fulfill our customer's requires and needs. The product will supply to all over the world, such as Europe, America, Australia,Senegal , Moscow ,Sheffield , belarus .Our company sets up several departments, including production department, sales department, quality control department and sevice center,etc. only for accomplish the good-quality product to meet customer's demand, all of our products have been strictly inspected before shipment. We always think about the question on the side of the customers,because you win,we win!