Dongguan factory：
Guangdong Yusheng Electronic Technology Co.Ltd.
phone：0769-85163678
fax：0769-85163166
mailbox：Yushliu@139.com
Contact person：Miss Liu 13829201132
address：Yusheng Technology Park, Fumin Road, Shajiao, Humen Town, Dongguan City
Shenzhen factory：
Yanchuan, Songgang Town, Baoan District, Shenzhen, Guangdong, China
Hong Kong address：
Yu Sheng Technology (Hong Kong) Co., Ltd.
39 / F, Aiwa, Phase 3, Tsz Oi Court, Tsz Wan Shan, Kowloon, Hong Kong
phone：00852-81263051
fax：00852-81263064