Aztec delivers.... Aztec's parent company, Multiceras, S.A., has been producing high-tech wax products in Monterrey, Mexico since 1978. The company started manufacturing wax bowl rings in 1985 and to date has shipped more than 30 million rings to U.S. customers. Aztec rings are made from carefully formulated blends of the highest quality U.S. and Mexican waxes. The finished rings are subject to rigorous testing to standars well in excess of the requirements of U.S. building and plumbing codes. Multiceras, an ISO 9001 certified company is a world-wide supplier of high quality wax products and intermediates for health care, cosmetics and other industries Aztec Plumbing is a low-cost producer and can deliver wax bowl rings to buyers throughout the U.S. at very competitive prices.