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Powder Metallurgy Industry
1006-6543
1999 Issue 6
yong jiu ci zhi zao fang fa
..............page:50
jing que ke li pen wu fa
..............page:24
fei shi fa ce ding fen mo de ping jun li du
li zhong quan ; li hong yun
..............page:42
fen mo ye jin gong ju gang sheng chan de xin fa zhan
wu yuan chang
..............page:25