Announcement of Ministry of Housing and Urban-Rural Development of the People's Republic of China

No.800

Announcement of Code for Design of Steelmaking Engineering of National Standard of the People's Republic of China Issued by Ministry of Housing and Urban-Rural Development of the People's Republic of China

Code for Design of Steelmaking Engineering has been approved as a national standard with a serial number of GB 50439-2015 and implemented on December 1，2015.The following articles are compulsory provisions and must be enforced strictly:5.2.5，5.3.15，6.1.8，7.1.8，7.1.9，8.1.6，8.1.7，18.1.7.Original Code for Design of Steelmaking Engineering with a serial number of GB 50439-2008 is repealed simultaneously.

Authorized by Our Institute of Standards and Norms，this Standard is published and distributed by China Planning Press.

Ministry of Housing and Urban-Rural Development of the People's Republic of China

April 8，2015