Challenger 13818806549 --- 021-22816736 
 Shanghai goes the United States Air Service Co., Ltd. is a professional set of air-conditioning, refrigerator sales service business, the Shanghai Exchange, the appliance industry association members, and was named the Class-A business, but also a community service center in Shanghai Hongkou District, the only air-conditioning industry service units. 
 Because we only service air conditioning, so we are more professional! 
 We have been adhering to the 
 1, the service first, quality first; 
 2, the price tag, the lowest price; 
 3, the level of service, quality, and attitude are beyond the normal service, so that beyond the psychological expectations of customers; 
 4, start from the practical to meet customer requirements, customer satisfaction as the company's largest maximum pursuit. 
 Since its inception, constantly sum up experience and improve themselves. With the credibility of survival, service quality and development. Thinking in the business, internal management and service level to make greater efforts. Specializing in air conditioning systems sales, installation, repair and maintenance services. Existing dozens of professional and technical maintenance personnel, installers, all of the relevant departments of more than a professional qualification certificate issued by examination. Is LG, Haier, TCL, Hitachi air conditioning unit special maintenance, repair, Panasonic, Hitachi, Sharp, United States, Chunlan, Haier and other types of air conditioning. And also many companies, schools, enterprises and institutions to establish a good business relationship. With strong technical force, excellent service attitude, excellent skills and good reputation to win the praise and support of our customers. We will "better serve the public," the spirit and high sense of responsibility, for our customers to provide better quality services. We serve all domestic and foreign product brands include air conditioning, refrigerator brand.