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All rights reserved: Beijing Wellan Century Technology Co., LTD. Jing ICP 07030289
Address:5th Floor, Jing Ding Yuan, Xi Si Huan Bei Lu 140, Haidian, Beijing 100097
Telephone: 86-10-88593861 88593865 88593512  fax: 86-10-88591839
Email: info@wellan2000.cn