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China Petroleum Machinery
1001-4578
1986 Issue 12
ti yao
..............page:59
xin xi jiao liu
..............page:51
qi ye dong tai
..............page:49
jian ping wilson65 he 65b xing zuan ji
li chong hui
..............page:45
scr dian qu dong zuan ji yong fa dian ji
li hai zuo
..............page:31
api spec q1 ping jie
liu da ren
..............page:29
zuan cong shi jing yong zj45j zuan ji de gai zao yu ban qian
chen ming gui ; xie cheng
..............page:18
kxing jing jia de gong zuo zhen dong fen xi
xie zun qian
..............page:12
diao huan la shen de sheng fa she dong tai jian kong
tian ru zuo ; zhang bao zuo
..............page:9
dan luo gan zuan ju ma da duan fu wai bai xian deng ju xian xing fen xi
su yi nao ; xie zhu zhuang
..............page:1