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File name:TIANCHENG STEEL TUBE Hot rolled workshop
Category:Technology Video Download
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Published:2013-06-14 03:03:20
Update:2013-06-14 03:27:27
Summary:TIANCHENG STEEL TUBE Hot rolled workshop

TIANCHENG STEEL TUBE Hot rolled workshop

http://www.youtube.com/watch?v=RlGGENJ3Ghw

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Precision Seamless Steel Tube Manufacturer