Henan Huanghe Whirlwind Co., Ltd. Henan Huanghe Whirlwind Co., Ltd.was founded by five major shareholders including Henan Huanghe Enterprises Group, Osaka Diamond Co. Ltd. (Japan), and Zhengzhou Research Institute for Abrasives and Grinding, etc. As one of the large enterprises in China, the company was listed on Shanghai Stock Exchange on November 26, 1998, and now has developed into a diversified, high-tech enterprise undertaking scientific research, production, trade and finance. Huanghe Whirlwind is a key high-tech enterprise under State Torch Program, and owns National Enterprise Technology Center, Postdoctoral Workstation and Shanghai R&D Center. We are specialized in six industrial fields and professionally supply over 146 kinds products including super hard materials (synthetic diamond, CBN, coated diamond, diamond micron powder), diamond tools, UDS series presses, construction machinery, special vehicles, automatic control-system, etc. As the leading company in synthetic diamond and diamond tools in China, we were awarded 2 National Gold Prizes and 8 Scientific Promotion Prizes and have already got 76 patents in recent years. Our products have been sharing high reputation in global markets in Japan, America, Europe and South-east Asia, etc. Best quality, competitive price, shortest delivery, satisfactory service are our management target. Trustworthy, faithful, cooperative, harmonious are our management principle. United, creative, practical, contributive are our management spirit. To be qualified with high-tech is our quality principle. We will be the most stable supplier of super hard materials in the world.