Dunhua Zhengxing Abrasive Co., Ltd. has been a manufacturer of boron carbide powder since 1987, and now is the biggest producer in China. Zhengxing boron carbide is available not only in narrow ranges of grain sizes according to the FEPA standard (F4 to F1200), GB/T-2481-1998, JIS, and ANSI, but also the components according to customers' specifications. The output is 4,000 tons per year. Through many years of hard work in the industry, we have gained a good reputation as a supplier of leading products in all branches relevant to our products, and also have been rewarded as the Credible...