2002 Issue 1
..............page:61-61
..............page:55-55
..............page:52-52
..............page:49-49
..............page:45-45
..............page:35-35
..............page:32-32
you ye ya suo xing dui zuan che fan zhuan ji gou ding wei jing du ying xiang de fen xi ji chu li
guo yong ; he qing hua ; deng bo lu
guo yong ; he qing hua ; deng bo lu
..............page:33-35
..............page:27-32
..............page:22-27
NEW INSERT AND BUTON COMPLEX - TYPE TAPERED BITS AND G308,YJ2.1R CEMENTED CARBIDE FOR ROCK DRILLING TOOLS
zhang guo zuo ; tong zhi wei ; zhang han bin ; zhou jian hua ; lu wei min ; yi kai hua
zhang guo zuo ; tong zhi wei ; zhang han bin ; zhou jian hua ; lu wei min ; yi kai hua
..............page:15-21
..............page:9-14
..............page:1-9
..............page:21-21
guan yu qi dong zao yan ji zao yan chong ji pin lv yu shi yan tai ce shi zhi guan xi de tan tao
zhang yu cheng
zhang yu cheng
..............page:62-64
ya qi ya li dui qi dong zao yan ji xing neng de ying xiang
zhang yu cheng
zhang yu cheng
..............page:58-61
guan yu jia gong zhong xin di si zhou gong neng de kuo da shi yong
wan ke qing ; guo yun gang
wan ke qing ; guo yun gang
..............page:56-57
ye ya chui huo sai xing cheng yu chong cheng shi jian de yan jiu
zhou zhi hong ; yu yong ; yan jian hui
zhou zhi hong ; yu yong ; yan jian hui
..............page:53-55
ye ya chui xu neng qi chong qi ya li de yan jiu
zhou zhi hong ; yu yong
zhou zhi hong ; yu yong
..............page:50-52
qian kong zuan ji jie xie zuan gan zhuang zhi fen xi
wu wan rong ; zou li min
wu wan rong ; zou li min
..............page:46-49
LONG SERVICE LIFE PERCOSSIVE ROCK DRILLING RODS
zhang guo zuo
zhang guo zuo
..............page:39-45
..............page:36-38