| 1. | Self - rescuer of carbon monoxide filter for coal mines
煤矿用一氧化碳过滤式自救器 |
| 2. | Grading of raise boring machine quality for coal mine
煤矿用反井钻机产品质量分等 |
| 3. | Motor used in electric bolt - hole drill for coal mine
煤矿用电动锚杆钻机电动机 |
| 4. | Solid woven carcase of conveyor belting used in coalmine
煤矿用输送带整体带芯 |
| 5. | The testing method of side discharge loader in coal mine
煤矿用侧卸装岩机试验方法 |
| 6. | Flameproof low - voltage plugs and sockets for coal mine
煤矿用隔爆型低压插销 |
| 7. | Explosion - proof type plug connection devices for coal mines
煤矿用防爆型插头连接装置 |
| 8. | General technical condition of roofbolter for coal mining
煤矿用锚杆钻机通用技术条件 |
| 9. | Flameproof circuit breaker with plugs and sockets for coal mine
煤矿用隔爆型插销开关 |
| 10. | Accelerating agent of shotcrete used in coal mines
煤矿用喷射混凝土速凝剂 |
