Dunhua Zhengxing Abrasive Co., Ltd.which grew up from Mudanjiang Ningan Zhengxing Abrasive Co., Ltd. founded in 1987, renamed and moved to Dunhua city development zone in June 1999. Dunhua Zhengxing Abrasive, as one of the most important professional manufacturers of Boron Carbide in the world, can supply grain sizes according to the standards of FEPA (F4 to F1200), GB/T-2481-1998, JIS, ANSI, nuclear grades, and customer tailor-made specifications, and is certificated by ISO9001 in 2002, ISO14001 in 2004, and CMS testing management system. Yearly capacity is 5000 ton. Quality control is ensured by using Coulter Beckmann LS13320, Malvern Mastersizer 2000, J. Engelsmann AG STAVII, LECO TC 400 and LECO CS-230 and professional equipped chemical analytic laboratory. R&D department is continually coming up with new innovations, optimizing existing products as well as new applications. As result, the project High Quality Boron Carbide Powder has been approved and founded by National Torch Project of Science & Technology Department of China. In the year of 2007 Dunhua Zhengxing Abrasive has been entitled as National Important Hi-Tech Enterprise by Science & Technology Department of China. Dunhua Zhengxing Abrasive is licensed to import and export, entitled as The Most Competitive Private Enterprises in Jilin Province and The AA Credible Enterprise entitled by China Construction Bank Jilin Branch, ninety-five percent of ZHENGXING ® boron carbide is exported to Europe, USA, Japan, Korea, India, Hong Kong etc.