April 28th, 2010--cornerstone laying ceremony of Yangzhou Guochen Photoelectric Material Co.,Ltd.l was held in Guazhou Jianhua Industrial Pa |
2013-08-19 |
April 28th, 2010--cornerstone laying ceremony of Yangzhou Guochen Photoelectric Material Co.,Ltd.l was held in Guazhou Jianhua Industrial Park. |