Jiangyin SMIC dragon battery or dragon battery which is better?

Changdian is good, because the full name of Changdian is Jiangsu Changdian Technology Co., Ltd., focusing on semiconductor packaging and testing business, providing domestic and foreign customers with complete solutions such as chip testing, packaging design and packaging testing. In 2003, the company successfully listed on the main board of Shanghai, becoming the first listed company of semiconductor packaging and testing in China. Now it has a national enterprise technology center and a postdoctoral research center. It is a national key high-tech enterprise, a supporting unit of the national engineering laboratory of high-density integrated circuits, and the chairman of the strategic alliance of integrated circuit packaging technology innovation. Jiangyin SMIC Shenghejing Micro Semiconductor (Jiangyin) Co., Ltd. has 1 branch ... It is good to have electricity for such a long time.