BEIJING BLUE CROSS BIOTECH CORP. is the biggest manufacturer in China for Diagnostic Test Kits. We mainly produce the Rapid Diagnostic Test Kits for detecting Fertility(HCG, LH Ovulation), Infectious Disease(HBsAg, Anti-HBs, HCV), Sexual Infectious Disease(HIV1+2, TP AntiSyphilis, Gonorrhea) and Tumor Marker(AFP). We export to over 40 countries and enjoy high reputation worldwide.  One Step HCG Pregnancy Test Kit is one of our most competitive product which have very high sensitivity 20mIU/ml Accuracy 99.9%. We seek distributors worldwide and sincerely hope a good business cooperation be established between us. If you are interested in our products, please contact us at any time.  BEIJING BLUE CROSS BIOTECH CO.,LTD. PHONE: 86 10 69756008  FAX: 86 10 69756035 CONTACT: Ms. Angela Li E-mail: biotecbbcb@hotmail.com