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Add: Lansidun Building, No.239 Helian Road, Baiyun District, Guangzhou City, Guangdong Province, China Zip code: 510425
Tel: +86-20-8629 8230 Fax: +86-20-8629 9761 E-mail: lsd3@lansidun.com
Website:www.lansidun.com www.videodoorphone.com.cn