国产精品一区二区蜜臀av_在线观看欧美日韩国产精品_中文特黄特色在线视频_国产高清视频无码_免费吸乳羞羞网站视频软件_性激烈欧美三级在线播放_一级毛片无遮挡免费_免费无遮挡 网站_jvid在线精品观看_久久美女福利是上海美女

According to the "Notice of the National Standardization Administration on issuing the second batch of recommended national standards plans and related standards foreign language version plans in 2022" (National Standardization Administration [2022] No. 22), our ministry organized China Municipal Engineering North China Design and Research Institute Co., Ltd. The company and other units drafted the national standard "Special Requirements for Safety and Control Devices for Gas Burners and Combustion Appliances Exhaust Valves (Draft for Comments)" (see attachment). Now open to the public for comments. Relevant units and the public can provide feedback through the following channels and methods:

1. Email: [email protected].

2. Mailing address: No. 16, Guiyuan Road, Huayuan Industrial Zone, Tianjin; Postal Code: 300384.

The deadline for feedback is February 28, 2024.

General Office of the Ministry of Housing and Urban-Rural Development

  January 26, 2024

(Excerpted from the Ministry of Housing and Urban-Rural Development of the People's Republic of China)