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Technical service 
We provide lifelong service, with regular on-site technical services and irregular written answers every year.
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1335 Xingwen Road, Jiading Industrial Zone, Shanghai, China 
Contact Hotline: 1719-0652-220
Tel: 021-69950096 
Fax: 021-69950097 
Web site: www.gde-electric.com 
Corporate mailbox: marketing@gde-electric.com
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