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04a413427's channel
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1:09
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3 years ago
Gear manufacturing
A new way of gear manufacturing,so efficient
1,533 views
04a413427
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0:13
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3 years ago
my work
my pro/e work
24 views
04a413427
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About 04a413427's channel
Created by
04a413427
Latest Activity
Jan 4, 2009
Date Joined
May 3, 2008
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Age
27
Country
China
Schools
Jilin University
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