Home / Standards / MT 624-1996 MT 624-1996 Abolished 煤矿用隔爆型控制按扭 Standard Type MT62 ICS N/A CCS N/A Status Abolished Issue Date 1996-12-30 Implementation 1997-11-01 Centralized Committee 国家矿山安全监察局 Issuing Authority 国家矿山安全监察局