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DEVELOPMENT AND APPLICATION OFd30 mm AND d32 mm DRILL HEADS
Liu Rongxiang ; Yi Kaihua ;Pei Xitao ;Wang Wenzhao;
DEVELOPMENT AND APPLICATION OFd30 mm AND d32 mm DRILL HEADS
Liu Rongxiang ; Yi Kaihua ;Pei Xitao ;Wang Wenzhao;
中国有色金属学报(英文版) . 1994, (03): 106 -107 .