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WhatsApp: (00) +86 150-1949-9375
Headquarters:15/F,Hing Yip Commercial Centre,272-284 Des Voeux Road Central, Central, Hong Kong,999077
CHN Office: 4/F,Bowen Building, No. 17, Xinxing Street, Zhangmutou Town, Dongguan, Guangdong,523618
USA Office: 15650 Salt Lake Ave. City of Industry CA 91745
Head Company:Hongkong Valsun Technology Limited | Business Register Number：2263704
Branch Company:Dongguan Haisheng Network Technology Limited | Business Register Number：441900006544872
China Guangzhou Plenty Bicycle Limited
Tongtu Bicycle (Guangzhou) Limited
Shenzhen Dongboshi Technology Limited
Shenzhen DBS Technology Limited
Wuyi Jinyue Engine Science and Technology Limited
Service Hours: United States Central Standard Time (CST) working days from 7:00 PM - 4:00 AM (except holidays)
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