test 中国北京西城区金融街33号通泰大厦B座419 Marsec System Inc. B419, Tong Tai Tower, No.33 Jin Rong St. Xi Cheng District, Beijing 100032,PR.China 邮编:100032 Tel:(8610)8808-7212 Ext. 3101 Fax:(8610) 8808-7300 Email:sujing.zhou@marsec.net