Company patent
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Invention Name: production process of crystal spheroidizing graphite

Patent number: ZL200410010265.6

Date of application: May 17, 2004

Date of authorization: January 3, 2007

Henan Luoyang industrial park four weft Road (north of the intersection of Xiaolangdi Dam railway and 310 National Road 200 meters)

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Luoyang Guanqi industrial and Trade Co., Ltd.

Address：Henan Luoyang industrial park four weft Road (north of the intersection of Xiaolangdi Dam railway and 310 National Road 200 meters)
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