HANGZHOU HYSEN PHARMA CO., LTD HEAD OFFICE: ROOM 813, C# WEST LAKE PLAZA OF INTERNATIONAL SCIENCE & TECHNOLOGY, NO. 391, WEN'ER ROAD, HANGZHOU, CHINA-310012 TEL: 0086-571-88298691 FAX: 0086-571-28918299 E-MAIL: SALES@HYSENPHARMA.CN