天黑黑影院在线观看视频高清免费_亚洲春色av无码专区在线播放_成人av无码一区二区三区_小泽玛莉亚一区二区视频在线_777米奇色888狠狠俺去啦_国产成av人片久青草影院_真实亲子乱一区二区_日本三级人妻完整版_国偷一区二区三区在线视频

JMA Doors and Windows System specializes in the research and design of door and window systems, providing customers with all-round door and window system solutions for application output standards and system services of doors and windows in construction projects.

JMA Door and Window System originated from Jianmei Door and Window Processing Factory established in 2002 and Jianmei Door and Window System Research and Development Center established in 2008 to undertake the "11th Five-Year Plan" and "12th Five-Year Plan" national science and technology support programs. Currently, there are more than 200 professional and technical research and development teams.

JMA Door and Window System has developed more than 90 door and window system products with superior performance, high cost performance and complete functions according to the environment, climate characteristics and project requirements of different regions to achieve full coverage of China's building climate regions (cold, cold, hot summer and cold winter, hot summer and warm winter and mild regions). simultaneously/concurrently has successful experience in projects with high technical requirements such as green buildings, low energy consumption buildings, passive buildings, windows for islands and reefs.