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China Petroleum Machinery
1001-4578
1986 Issue 3
ti yao
..............page:65
xin xi jiao liu
..............page:63
han yang pai xiu jing ji di pan xi lie
huang yun sheng
..............page:59
mo ca xue ji chu zhi shi
zhang si wei
..............page:52
xq-7 -3 3/8 xiang pi tong qu xin gong ju
wang feng ming
..............page:38
zi dong diao xin wu mi feng ye ya zhu sai de she ji
I.T.LAURENSON
..............page:24
xiu jing ji zhu gun tong sheng cao tao de jia gong
liu da ren ; li pei
..............page:22
qi ye dong tai
..............page:99998