煤矿用氮气防灭火技术规范
Technical specification of fire fighting by nitroggen in coal mines
1997-12-30
MT/T 1172-2019
矿用移动式注浆泵技术条件
Technical specification of movable grouting pumping station in coal mines
2019-11-28
NB/T 11536-2024
煤矿带压开采底板井下注浆加固改造技术规范
Technical specification for underground grouting and reinforcement retrofitting of floor of mining above confined aquifer in coal mines
2024-05-24
NB/T 11542-2024
煤矿巷道笼式锚索底板锚注支护技术规范
Technical specification for cage type cable to floor bolt-grouting support in coal mine roadway