Home / Standards / JG/T 301-2011 JG/T 301-2011 Active 机制玻镁复合板与风管 Standard Type JG ICS N/A CCS N/A Status Active Issue Date 2011-05-09 Implementation 2011-10-01 Centralized Committee 住房和城乡建设部 Issuing Authority 住房和城乡建设部