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在批林批孔运动深入发展的大好形势下,一机部、冶金部于1974年6月12日至15日在鞍钢弓长岭铁矿召开了QZ-250型潜孔钻机鉴定会议,对鞍钢矿山研究所、宣化风动机械厂和鞍钢弓长岭铁矿共同设计、制造和试验的QZ-250型潜孔钻机进行了鉴定。参加会议的有河北省科委、机械局,鞍山市一工交,鞍钢矿山公司和来自全国有关矿山、机械制造厂、科
In a bidding for the further development of bore hole and hole movement, a mechanization and metallurgical department held a qualification meeting of QZ-250 DTH drilling rig at Gongchangling Iron Mine, Anshan Iron & Steel Co., Ltd. from June 12 to June 15, 1974, Mining Institute, Xuanhua Fengdonggong Machinery Factory and Angang Gongchangling Iron Mine co-designed, manufactured and tested QZ-250 DTH drilling rig were identified. Participate in the meeting of Hebei Province Science and Technology Commission, Machinery Bureau, Anshan City, a work pay, Anshan Iron and Steel Company and from the relevant national mining, machinery manufacturing plant, Section