Business: design, manufacture, installation of large, medium and small ventilation engineering. Ventilation ducts, air conditioning ducts, welding smoke removal, noise removal, pipe insulation, fume purification, environmental engineering. Production and processing of ventilation ducts, air box, ventilation sheet metal parts and other products, sales agents brand fan, ventilation junior high efficiency filters, fan coil units, air valve, air, rubber insulation and other ventilation products. Undertake ventilation design, central air conditioning and ventilation engineering, plant design workshop ventilation system, dust net systems, kitchen exhaust systems. Design simple, beautiful, processing speed, Beijing ventilation pipe I produced all the national standards, high quality profiles, and carefully assembled from processing, factory rigorous testing, home installation. Our spirit of "excellence, sincere service" business philosophy and "integrity, professional and efficient" service and dedication to providing excellent products and quality services to new and existing customers, the majority of customer recognition and trust, and In the fierce competition in the market continue to grow and develop. Welcome to the new and old customers to inquire, business negotiations.