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Qingdao Augreener Electronic Technology Co., Ltd 
ADD:No.13, Hancheng Road, Qingdao Free Trade Zone, 266555, Qingdao, Shandong, China 
TEL: +86 532 86769488  FAX:+86 532 86881057
www.topdoorbell.com 
Attn:
Irene : 
Email: augreener@gmail.com
Copyright(C)Since 2017 Qingdao Augreener Electronic Technology Co., Ltd
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