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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
xuan ze zuan ji fa dian ji zu de you guan wen ti tan tao
liu hong bin
..............
page:46
liang zhong jin gang shi zuan tou tong guo ji shu jian ding
yan gang
..............
page:45
xq-7 -3 3/8 xiang pi tong qu xin gong ju
wang feng ming
..............
page:38
d155 170 zhu shui li xin beng de xiao lv ce shi yan jiu
cui zhen hua
..............
page:32
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
qiang ci da lao qi de jie gou she ji yu shi yan yan jiu
wu qiong hua
..............
page:10
zuan ji xiang shi di zuo de qiang du ji suan yu wei yi fen xi
yang min jia
..............
page:1
qi ye dong tai
..............
page:99998