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一种施加复合交变电磁场改善连铸空心管坯质量的方法和装置

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First Author:litingju

Disigner of the Invention:caozhiqiang,张琦,WANG Tongmin,jinjunze

Application Number:CN200810010737.6

Authorization Date:2008-03-19

Authorization number:CN101298094

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