Home / Standards / JB/T 12128-2015 JB/T 12128-2015 Active 中速磨煤机石子煤正压气力输送系统 Standard Type JB ICS N/A CCS N/A Status Active Issue Date 2015-04-30 Implementation 2015-10-01 Centralized Committee 机械行业 Issuing Authority 机械行业