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National Unified Service Center:
National Free Service Hotline: 400-1001-777
International Station Service Phone: 18965657119-Ms. Xu 17750083777-Mr. Zeng
Domestic station service phone: 17750083020-Mr. Chen
Company enterprise QQ: 4000592603 33482317
Company WeChat: 17750083019/17750083076
Enterprise email: ctngg@163.com