EXHIBIT 10.7 PRODUCT PURCHASE AND SALES AGREEMENT Party A (hereinafter referred to as the "Biological"): Tianjin Tianshi Biological Development Co., Ltd. Party B (hereinafter referred to as the "Engineering"): Tianjin Tianshi Biological Engineering...Product Purchase and Sales Agreement • March 31st, 2006 • Tiens Biotech Group Usa Inc • Pharmaceutical preparations
