Home / Standards / MT 72-1991 MT 72-1991 Active 边双链刮板输送机用刮板 Standard Type MT72 ICS N/A CCS N/A Status Active Issue Date 1991-01-15 Implementation 1991-03-01 Centralized Committee 国家矿山安全监察局 Issuing Authority 国家矿山安全监察局