Home / Standards / GB 7958 GB 7958 Active Capacitor discharge type exploders for coal mines 煤矿用电容式发爆器 Standard Type GB ICS 29.260.20 CCS K35 Status 现行 Issue Date 2014-12-22 Implementation 2015-11-01 Responsible Dept 国家矿山安监局 Drafting Unit 国家矿山安监局