Longtime Building Systems Engineering Co., Ltd. in Xi'an in the northwest, in one of the earlier and the large-scale central air system engineering services company. The company's main air system, Xi'an new air system, central air system, Xi'an central air system, Ende fresh air system, Xi'an Townsend fresh air system, home air system, Xi'an, home air system, new residential air system, new wind ventilators, central water purification Detailed information systems, Townsend fresh air system, Enke fresh air system, Panasonic's new wind system. The company set technical services, construction design, project implementation, product sales, is specialized in building ventilation engineering services business. Companies adhering to the "objectivity, integrity, innovation, collaboration" business philosophy to excellence in sophisticated products, reliable quality, superior cost-effective and efficient services to meet the growing needs of customers. My company from inception to now won the support and trust of all users, and with many internationally renowned companies to establish a good long-term cooperation. In the application of the new air system with Germany Townsend, United States Brown, Finland Enke, Panasonic Environmental Systems Co., Thorne Environmental Technology (Shanghai) Co., Ltd. established cooperative relations. "People-oriented, service first, honest and trustworthy, customer first" is that we always adhere to the purpose. We will encourage all employees will be the goal of this spirit into the market, walk the world, will win praise from friends in the community to support such business services. This year marks the Golden Age, a hundred fixed thrive. Growing up in the market economy Longtime company is showing an unprecedented vitality, longtime tomorrow will be even better, create more brilliant achievements will, is bound to be more prominent return customers!