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阐述了阻碍我国凿岩钎具行业发展的主要因素,提出了修订硬质合金钎头和锥体连接钎杆国家标准的12项建议。
The main factors hindering the development of rock drill industry in China are expounded, and 12 proposals for revising the national standards of carbide drill head and taper rod are put forward.