Drill rig and its accessory tools were developed to meet the technical requirements of drilling Geo physical blast holes in soil and rock among mountainous and hilly area in China.
为满足我国山地丘陵地区物探爆破孔施工技术的要求，研究适合土层、岩层钻进用的钻机及工具，对钻机的配套设备进行了开发研究。
The utility model relates to a coal injection device belonging to accessory devices of blast furnace ironmaking.
本实用新型属于高炉炼铁附属装置。
应用推荐