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  Year

                                     Inventor Events
 2007 Found the the first branch company--Hunan Great Steel Pipe Co.,Ltd
 2009 Found the the second branch company--Threeway Steel Co.,Ltd
 2010 Invest hunan highway construction
 2011 Found the the third branch company--Bestar Steel Co.,Ltd
 2012 Invest six steel factory Tianjin Province in China
 2013 Found the the fourth branch company--Hunan Prime Steel Pipe Co.,Ltd

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