Zhengzhou RJ Diamond Co., Ltd. (short in “RJ”) specializes in research, development, manufacture, and marketing of super abrasive materials and products. Our products include Diamond Wire Drawing Die Blanks, PDC, PCD&PCBN Cutting Tool Blanks, Diamond& CBN Micron Powder and other PCD and PCBN related products, which are widely used in various industries such as wire drawing, oil drilling, coal mining, geological prospecting and drilling, glass and ceramic cutting, abrasive tools and materials.