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Mr. Yao Yongmao, technical consultant and chief engineer of Ningguo Huafeng wear resistant materials Co., Ltd., is vice chairman of wear failure and wear resistance Technical Committee of Chinese society of mechanical engineering, member of wear resistant materials professional committee of Chinese society of metals, guest of advanced wear resistant corrosion and Functional Materials Research Institute of Jinan University and national and local joint engineering research center of high performance metal wear resistant materials technology Experts, the third batch of workers dedicated to the foundry industry for 50 years by China Foundry Association, outstanding contribution experts of wear-resistant industry and scientific and technological innovation leader of Ningguo City. Through team efforts, we have achieved fruitful results in technology research and development.