Profile: Zhengzhou Hongtuo Superabrasive Products Co., Ltd is engaged in manufacturing super abrasive (diamond & CBN) honing stones and grinding wheels. We are an ISO 9001:2008 certified company. We can supply a complete line of honing tools including stone, mandrel, hone head, adapters and guide shoes. CBN grinding wheel is suitable for machining hard and tough materials such as high-vanadium steel, harden steel, die steel, cast iron, cold harden cast iron, Ni-chrome cold harden cast iron, eutectic alloy cast iron, titanium alloy and iron materials. Diamond grinding wheel is suitable for machining hard and brittle materials. Diamond dressing roller is used in the form grinding in the modern machining process, which features high precision, high efficiency, longlife time and low cost.