Home / Standards / MT 232-1991 MT 232-1991 Active 1吨矿车立井多绳罐笼 Standard Type MT23 ICS N/A CCS N/A Status Active Issue Date 1991-02-02 Implementation 1991-04-30 Centralized Committee 国家矿山安全监察局 Issuing Authority 国家矿山安全监察局