Wain-Tsiang Enterprise Co., Ltd. Beijing Branch
(Sinotec Safeway Technology Co.,Ltd.)
503 Shougang Building, Heping West Street, Chaoyang District,
Beijing China 100013
TEL: +86 10 82825882
Fax: +86 10 82825881
Email: sinotec17@163.com or waint@seed.net.tw