Weifang Zhongrui Construction Machinery Co., Ltd. is a professional company engaged in the research and development of drilling machines. We have been honored as Weifang Drilling Mechanical Engineering Technical Research Center and Weifang Independent Innovation Model Company. Our company is specialized in manufacturing DTH bits, DTH hammers, and air-leg rock drills, and our quality has reached advanced level in the industry.

As a science technology enterprise, we are composed of professional technicians and managers, of whom 48% are technicians and managers with junior college or above education. Our company has advanced mechanical processing and HT critical processing equipment. We have already attained ISO9001:2000 quality system certification.

With many years of accumulation, we have developed a number of patented products with independent intellectual property rights. Our research level has on behalf of the domestic level.