Address: Room 602, Building 3, Quanweida Industrial Zone, No.171, Bulong Road, Buji Street, Longgang District, Shenzhen
Tel: +86 755 83360947
Fax: +86 755 83247893
Email: sy-iot@foxmail.com
24H hotline: +86 18138837357
Complaints & Suggestions: +86 18138837355
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