The mechanical and electronic information, central air-conditioning market (monthly) was formally founded in May 2004, issue of national unity, national unified serial number: CN32-1628 / TM, international standard serial number: ISSN1671-0797, the national emailed code: 28-285. As a national professional magazine - the central air-conditioning market, market positioning of the central air conditioning industry information, market analysis, brand promotion, product recommendations, marketing market information class professional magazine, we aim to build the central air-conditioning industry manufacturers and engineering business, agents, real estate developers and design institutes, research institutes, government procurement department for information exchange platform.